diff --git a/SAS/TMSS/frontend/tmss_webapp/src/components/ViewTable.js b/SAS/TMSS/frontend/tmss_webapp/src/components/ViewTable.js
index a9bd822854a2a0899fa51477c09df4873bc2bea2..1544f03d3077e8e1f3abbb4727b5cc15f39fe548 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/components/ViewTable.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/components/ViewTable.js
@@ -1157,8 +1157,10 @@ function dateFilterFn(rows, id, filterValue) {
  function dateRangeFilterFn(rows, id, filterValue) {
   const filteredRows = _.filter(rows, function (row) {
     // If cell value is null or empty
-    if (!row.values[id]) {
+    if (filterValue.length>0 && !row.values[id]) {
       return false;
+    } else if (!row.values[id]) {
+      return true;
     }
     //Remove microsecond if value passed is UTC string in format "YYYY-MM-DDTHH:mm:ss.sssss"
     let rowValue = moment.utc(row.values[id].split('.')[0]);
diff --git a/SAS/TMSS/frontend/tmss_webapp/src/routes/Scheduling/SchedulingUnitList.js b/SAS/TMSS/frontend/tmss_webapp/src/routes/Scheduling/SchedulingUnitList.js
index 9d081a10cc2562ee31f8a6ef4ce7089bada529c5..11256e2133f779db96941a9d0b682d6617baa41e 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/routes/Scheduling/SchedulingUnitList.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/routes/Scheduling/SchedulingUnitList.js
@@ -45,13 +45,23 @@ class SchedulingUnitList extends Component{
         scheduling_set: {name: "Scheduling Set",},       
         observation_strategy_template_name: {name: "Template Name"},
         observation_strategy_template_description: {name: "Template Description"},
-        start_time:{
-            name:"Start Time",
+        on_sky_start_time:{
+            name:"Observation Start Time",
             filter:"flatpickrDateRange",
             format:UIConstants.CALENDAR_DATETIME_FORMAT
         },
-        stop_time:{
-            name:"End Time",
+        on_sky_stop_time:{
+            name:"Observation End Time",
+            filter:"flatpickrDateRange",
+            format:UIConstants.CALENDAR_DATETIME_FORMAT
+        },
+        process_start_time:{
+            name:"Process Start Time",
+            filter:"flatpickrDateRange",
+            format:UIConstants.CALENDAR_DATETIME_FORMAT
+        },
+        process_stop_time:{
+            name:"Process End Time",
             filter:"flatpickrDateRange",
             format:UIConstants.CALENDAR_DATETIME_FORMAT
         },
@@ -95,8 +105,10 @@ class SchedulingUnitList extends Component{
                 "Template ID",
                 "Template Name",
                 "Template Description",
-                "Start Time",
-                "End Time", 
+                "Observation Start Time",
+                "Observation End Time", 
+                "Process Start Time",
+                "Process End Time", 
                 "Duration (HH:mm:ss)",
                 "Prevent Autodeletion",
                 "Stations (CS/RS/IS)", 
@@ -152,8 +164,10 @@ class SchedulingUnitList extends Component{
                 "Stations (CS/RS/IS)":"filter-input-50",
                 "Tasks content (O/P/I)":"filter-input-50",
                 "Number of SAPs in the target observation":"filter-input-50",
-                "Start Time":"filter-input-150",
-                "End Time":"filter-input-150",
+                "Observation Start Time":"filter-input-150",
+                "Observation End Time":"filter-input-150",
+                "Process Start Time":"filter-input-150",
+                "Process End Time":"filter-input-150",
                 "Created_At":"filter-input-150",
                 "Updated_At":"filter-input-150",
                 "Template ID":"filter-input-75",
@@ -369,8 +383,8 @@ class SchedulingUnitList extends Component{
      * Get server side filter column details form API
      */
     async getFilterColumns(type) {
-        const columnOrderToBeRemove = ['Status', 'Workflow Status', 'Start Time', 'End Time'];
-        const columnDefinitionToBeRemove = ['status', 'workflowStatus', 'start_time', 'stop_time'];
+        const columnOrderToBeRemove = ['Status', 'Workflow Status', 'Observation Start Time', 'Observation End Time', 'Process Start Time', 'Process End Time' ];
+        const columnDefinitionToBeRemove = ['status', 'workflowStatus', 'on_sky_start_time', 'on_sky_stop_time', 'process_start_time', 'process_stop_time'];
         const suFilters = await ScheduleService.getSchedulingUnitFilterDefinition(type);
         this.columnMap = [];
         let tmpDefaulColumns = _.cloneDeep(this.state.defaultcolumns[0]);
@@ -1142,21 +1156,37 @@ class SchedulingUnitList extends Component{
         let filters = UtilService.localStore({ type: 'get', key: "scheduleunit_list_"+this.state.suType });
         if(filters.length > 0 ) {
             for( const filter of filters) {
-                if (filter.id === 'Start Time') {
+                if (filter.id === 'Observation Start Time') {
+                    const values = filter.value;
+                    if (values[0]) {
+                        this.filterQry += 'on_sky_start_time_after='+ moment(new Date(values[0])).format("YYYY-MM-DDTHH:mm:ss")+".000Z&";
+                    }
+                    if (values[1]) {
+                        this.filterQry += 'on_sky_start_time_before='+moment(new Date(values[1])).format("YYYY-MM-DDTHH:mm:ss")+".000Z&";
+                    }
+                }   else if (filter.id === 'Observation End Time') {
+                    const values = filter.value;
+                    if (values[0]) {
+                        this.filterQry += 'on_sky_stop_time_after='+ moment(new Date(values[0])).format("YYYY-MM-DDTHH:mm:ss")+".000Z&";
+                    }
+                    if (values[1]) {
+                        this.filterQry += 'on_sky_stop_time_before='+moment(new Date(values[1])).format("YYYY-MM-DDTHH:mm:ss")+".000Z&";
+                    }
+                }   else if (filter.id === 'Process Start Time') {
                     const values = filter.value;
                     if (values[0]) {
-                        this.filterQry += 'start_time_after='+ moment(new Date(values[0])).format("YYYY-MM-DDTHH:mm:ss")+".000Z&";
+                        this.filterQry += 'process_start_time_after='+ moment(new Date(values[0])).format("YYYY-MM-DDTHH:mm:ss")+".000Z&";
                     }
                     if (values[1]) {
-                        this.filterQry += 'start_time_before='+moment(new Date(values[1])).format("YYYY-MM-DDTHH:mm:ss")+".000Z&";
+                        this.filterQry += 'process_start_time_before='+moment(new Date(values[1])).format("YYYY-MM-DDTHH:mm:ss")+".000Z&";
                     }
-                }   else if (filter.id === 'End Time') {
+                }   else if (filter.id === 'Process End Time') {
                     const values = filter.value;
                     if (values[0]) {
-                        this.filterQry += 'stop_time_after='+ moment(new Date(values[0])).format("YYYY-MM-DDTHH:mm:ss")+".000Z&";
+                        this.filterQry += 'process_stop_time_after='+ moment(new Date(values[0])).format("YYYY-MM-DDTHH:mm:ss")+".000Z&";
                     }
                     if (values[1]) {
-                        this.filterQry += 'stop_time_before='+moment(new Date(values[1])).format("YYYY-MM-DDTHH:mm:ss")+".000Z&";
+                        this.filterQry += 'process_stop_time_before='+moment(new Date(values[1])).format("YYYY-MM-DDTHH:mm:ss")+".000Z&";
                     }
                 }   else if ((filter.id === 'Scheduling Unit ID' || filter.id === 'Linked Draft ID') && filter.value != '') {
                     let columnDetails = _.find(this.state.columnMap, {displayName:filter.id});
diff --git a/SAS/TMSS/frontend/tmss_webapp/src/routes/Scheduling/ViewSchedulingUnit.js b/SAS/TMSS/frontend/tmss_webapp/src/routes/Scheduling/ViewSchedulingUnit.js
index 481f1ec388c9ff1c0552d197cdb9563d909eae7e..92760509bd87567bd3e3c6894ee7bb5bc74ef898 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/routes/Scheduling/ViewSchedulingUnit.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/routes/Scheduling/ViewSchedulingUnit.js
@@ -61,8 +61,10 @@ class ViewSchedulingUnit extends Component {
                 "Control ID",
                 "Name",
                 "Description",
-                "Start Time",
-                "End Time",
+                "Observation Start Time",
+                "Observation End Time",
+                "Process Start Time",
+                "Process End Time",
                 "Duration (HH:mm:ss)",
                 "Relative Start Time (HH:mm:ss)",
                 "Relative End Time (HH:mm:ss)",
@@ -78,7 +80,10 @@ class ViewSchedulingUnit extends Component {
                 "Updated at"
             ],
             defaultcolumns: [{
-                status_logs: "Status Logs",
+                status_logs: {
+                    name: "Status Logs",
+                    filter: 'none'
+                },
                 status: {
                     name: "Status",
                     filter: "select"
@@ -91,15 +96,25 @@ class ViewSchedulingUnit extends Component {
                 subTaskID: 'Control ID',
                 name: "Name",
                 description: "Description",
-                start_time: {
-                    name: "Start Time",
-                    filter: "date",
-                    format: UIConstants.CALENDAR_DATETIME_FORMAT
+                on_sky_start_time: {
+                    name: "Observation Start Time",
+                    filter:"flatpickrDateRange",
+                    format:UIConstants.CALENDAR_DATETIME_FORMAT
                 },
-                stop_time: {
-                    name: "End Time",
-                    filter: "date",
-                    format: UIConstants.CALENDAR_DATETIME_FORMAT
+                on_sky_stop_time: {
+                    name: "Observation End Time",
+                    filter:"flatpickrDateRange",
+                    format:UIConstants.CALENDAR_DATETIME_FORMAT
+                },
+                process_start_time: {
+                    name: "Process Start Time",
+                    filter:"flatpickrDateRange",
+                    format:UIConstants.CALENDAR_DATETIME_FORMAT
+                },
+                process_stop_time: {
+                    name: "Process End Time",
+                    filter:"flatpickrDateRange",
+                    format:UIConstants.CALENDAR_DATETIME_FORMAT
                 },
                 duration: {
                     name: "Duration (HH:mm:ss)",
@@ -140,6 +155,10 @@ class ViewSchedulingUnit extends Component {
                 "Cancelled": "filter-input-50",
                 "Duration (HH:mm:ss)": "filter-input-75",
                 "Template ID": "filter-input-50",
+                "Observation Start Time":"filter-input-150",
+                "Observation End Time":"filter-input-150",
+                "Process Start Time":"filter-input-150",
+                "Process End Time":"filter-input-150",
                 // "BluePrint / Task Draft link": "filter-input-100",
                 "Relative Start Time (HH:mm:ss)": "filter-input-75",
                 "Relative End Time (HH:mm:ss)": "filter-input-75",
@@ -253,7 +272,7 @@ class ViewSchedulingUnit extends Component {
         this.setToggleBySorting();
         let schedule_id = this.props.match.params.id;
         let schedule_type = this.props.match.params.type;
-        const permissionById = await AuthUtil.getUserPermissionByModuleId(schedule_type === 'blueprint'? 'scheduling_unit_blueprint': 'scheduling_unit_draft', schedule_id);
+        const permissionById = await AuthUtil.getUserPermissionByModuleId(schedule_type === 'blueprint'? 'scheduling_unit_blueprint': 'scheduling_unit_draft', schedule_id)
         this.setState({userPermission: permission, permissionById: permissionById, schedule_id: schedule_id});
         if (schedule_type && schedule_id) {
             this.stations = await ScheduleService.getStationGroup();
@@ -376,8 +395,8 @@ class ViewSchedulingUnit extends Component {
     }
 
     async getFilterColumns(type) {
-        const columnOrderToRemove = type === 'blueprint' ?[] :['Status', 'Status Logs', 'Start Time', 'End Time', 'Control ID','#Dataproducts', 'Data Size', 'Data Size on Disk', 'Subtask Content'];
-        const columnDefinitionToRemove = type === 'blueprint' ?['scheduling_unit_draft']:['scheduling_unit_blueprint', 'status', 'status_logs', 'start_time', 'stop_time', 'subTaskID','noOfOutputProducts','size','dataSizeOnDisk','subtaskContent'];
+        const columnOrderToRemove = type === 'blueprint' ?[] :['Status', 'Status Logs', 'Observation Start Time', 'Observation End Time', 'Process Start Time', 'Process End Time', 'Control ID','#Dataproducts', 'Data Size', 'Data Size on Disk', 'Subtask Content'];
+        const columnDefinitionToRemove = type === 'blueprint' ?['scheduling_unit_draft']:['scheduling_unit_blueprint', 'status', 'status_logs', 'on_sky_start_time', 'on_sky_stop_time', 'process_start_time', 'process_stop_time', 'subTaskID','noOfOutputProducts','size','dataSizeOnDisk','subtaskContent'];
         let tmpDefaulColumns = _.cloneDeep(this.state.defaultcolumns[0]);
         let tmpOptionalColumns = _.cloneDeep(this.state.optionalcolumns[0]);
         tmpOptionalColumns.blueprint_draft = this.props.match.params.type==="draft"?"Linked Blueprint": "Linked Draft"
@@ -479,7 +498,7 @@ class ViewSchedulingUnit extends Component {
     async getFormattedTaskDrafts(schedulingUnit) {
         let scheduletasklist = [];
         // Common keys for Task and Blueprint
-        let commonkeys = ['id', 'created_at', 'description', 'name', 'tags', 'updated_at', 'url', 'do_cancel', 'relative_start_time', 'relative_stop_time', 'start_time', 'stop_time', 'duration', 'status'];
+        let commonkeys = ['id', 'created_at', 'description', 'name', 'tags', 'updated_at', 'url', 'do_cancel', 'relative_start_time', 'relative_stop_time', 'on_sky_start_time', 'on_sky_stop_time', 'process_start_time', 'process_stop_time', 'duration', 'status'];
         for (const task of schedulingUnit.task_drafts) {
             let scheduletask = {};
             scheduletask['tasktype'] = 'Draft';
@@ -1317,12 +1336,13 @@ class ViewSchedulingUnit extends Component {
                                 <label className="col-lg-2 col-md-2 col-sm-12">Updated At</label>
                                 <span className="col-lg-4 col-md-4 col-sm-12">{this.state.scheduleunit.created_at && moment(this.state.scheduleunit.updated_at, moment.ISO_8601).format(UIConstants.CALENDAR_DATETIME_FORMAT)}</span>
                             </div>
+                            {this.props.match.params.type === 'blueprint' &&
                             <div className="p-grid">
-                                <label className="col-lg-2 col-md-2 col-sm-12">Start Time</label>
-                                <span className="col-lg-4 col-md-4 col-sm-12">{this.state.scheduleunit.start_time && moment(this.state.scheduleunit.start_time).format(UIConstants.CALENDAR_DATETIME_FORMAT)}</span>
-                                <label className="col-lg-2 col-md-2 col-sm-12">End Time</label>
-                                <span className="col-lg-4 col-md-4 col-sm-12">{this.state.scheduleunit.stop_time && moment(this.state.scheduleunit.stop_time).format(UIConstants.CALENDAR_DATETIME_FORMAT)}</span>
-                            </div>
+                                <label className="col-lg-2 col-md-2 col-sm-12">Observation Start Time</label>
+                                <span className="col-lg-4 col-md-4 col-sm-12">{this.state.scheduleunit.on_sky_start_time && moment(this.state.scheduleunit.on_sky_start_time).format(UIConstants.CALENDAR_DATETIME_FORMAT)}</span>
+                                <label className="col-lg-2 col-md-2 col-sm-12">Observation End Time</label>
+                                <span className="col-lg-4 col-md-4 col-sm-12">{this.state.scheduleunit.on_sky_stop_time && moment(this.state.scheduleunit.on_sky_stop_time).format(UIConstants.CALENDAR_DATETIME_FORMAT)}</span>
+                            </div>}
                             <div className="p-grid">
                                 <label className="col-lg-2 col-md-2 col-sm-12" >Duration (HH:mm:ss)</label>
                                 <span className="col-lg-4 col-md-4 col-sm-12">{moment.utc((this.state.scheduleunit.duration ? this.state.scheduleunit.duration : 0) * 1000).format(UIConstants.CALENDAR_TIME_FORMAT)}</span>
@@ -1426,7 +1446,6 @@ class ViewSchedulingUnit extends Component {
                         </span>
                     </div>
                 </div>
-
                 {this.state.isLoading ? <AppLoader /> : (this.state.schedulingUnitTasks.length > 0) ?
                     <ViewTable
                         data={this.state.schedulingUnitTasks}
diff --git a/SAS/TMSS/frontend/tmss_webapp/src/routes/Task/list.js b/SAS/TMSS/frontend/tmss_webapp/src/routes/Task/list.js
index 092c08eee35c1f03eb78fdffbd0ce6a8439f0521..1e3ddf44003f34118847dd2ac10637c27b6b0e34 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/routes/Task/list.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/routes/Task/list.js
@@ -53,8 +53,10 @@ export class TaskList extends Component {
                 "Control ID",
                 "Name",
                 "Description",
-                "Start Time",
-                "End Time",
+                "Observation Start Time",
+                "Observation End Time",
+                "Process Start Time",
+                "Process End Time",
                 "Duration (HH:mm:ss)",
                 "Relative Start Time (HH:mm:ss)",
                 "Relative End Time (HH:mm:ss)",
@@ -106,13 +108,23 @@ export class TaskList extends Component {
                 description: {
                     name:"Description"
                 },
-                start_time: {
-                    name: "Start Time",
+                on_sky_start_time: {
+                    name: "Observation Start Time",
                     filter: "flatpickrDateRange",
                     format: UIConstants.CALENDAR_DATETIME_FORMAT
                 },
-                stop_time: {
-                    name: "End Time",
+                on_sky_stop_time: {
+                    name: "Observation End Time",
+                    filter: "flatpickrDateRange",
+                    format: UIConstants.CALENDAR_DATETIME_FORMAT
+                },
+                process_start_time: {
+                    name: "Process Start Time",
+                    filter: "flatpickrDateRange",
+                    format: UIConstants.CALENDAR_DATETIME_FORMAT
+                },
+                process_stop_time: {
+                    name: "Process End Time",
                     filter: "flatpickrDateRange",
                     format: UIConstants.CALENDAR_DATETIME_FORMAT
                 },
@@ -182,8 +194,10 @@ export class TaskList extends Component {
                 "Linked Draft ID": "filter-input-75",
                 "Relative Start Time (HH:mm:ss)": "filter-input-75",
                 "Relative End Time (HH:mm:ss)": "filter-input-75",
-                "Start Time": "filter-input-150",
-                "End Time": "filter-input-150",
+                "Observation Start Time": "filter-input-150",
+                "Observation End Time": "filter-input-150",
+                "Process Start Time": "filter-input-150",
+                "Process End Time": "filter-input-150",
                 "Status": "filter-input-125",
                 "#Dataproducts": "filter-input-75",
                 "Data size": "filter-input-50",
@@ -265,7 +279,7 @@ export class TaskList extends Component {
     getFormattedTaskDrafts(tasks) {
         let scheduletasklist = [];
         // Common keys for Task and Blueprint
-        let commonkeys = ['id', 'created_at', 'description', 'name', 'tags', 'updated_at', 'url', 'do_cancel', 'relative_start_time', 'relative_stop_time', 'start_time', 'stop_time', 'duration', 'status'];
+        let commonkeys = ['id', 'created_at', 'description', 'name', 'tags', 'updated_at', 'url', 'do_cancel', 'relative_start_time', 'relative_stop_time', 'on_sky_start_time', 'on_sky_stop_time', 'process_start_time', 'process_stop_time', 'duration', 'status'];
         for (const task of tasks) {
             let scheduletask = {};
             scheduletask['tasktype'] = 'Draft';
@@ -615,8 +629,8 @@ export class TaskList extends Component {
      */
     async getFilterColumns(type) {
         const taskFilters = await TaskService.getTaskFilterDefinition(type);
-        const columnOrderToRemove = this.state.taskType === 'Blueprint' ?[] :['Status', 'Status Logs', 'Start Time', 'End Time', 'Control ID','#Dataproducts', 'Data Size', 'Data Size on Disk', 'Subtask Content'];
-        const columnDefinitionToRemove = this.state.taskType === 'Blueprint' ?['scheduling_unit_draft']:['scheduling_unit_blueprint', 'status', 'status_logs', 'start_time', 'stop_time', 'subTaskID','noOfOutputProducts','size','dataSizeOnDisk','subtaskContent'];
+        const columnOrderToRemove = this.state.taskType === 'Blueprint' ?[] :['Status', 'Status Logs', 'Observation Start Time', 'Observation End Time', 'Process Start Time', 'Process End Time', 'Control ID','#Dataproducts', 'Data Size', 'Data Size on Disk', 'Subtask Content'];
+        const columnDefinitionToRemove = this.state.taskType === 'Blueprint' ?['scheduling_unit_draft']:['scheduling_unit_blueprint', 'status', 'status_logs', 'on_sky_start_time', 'on_sky_stop_time', 'process_start_time', 'process_stop_time','subTaskID','noOfOutputProducts','size','dataSizeOnDisk','subtaskContent'];
         this.columnMap = [];
         let tmpDefaulColumns = _.cloneDeep(this.state.defaultcolumns[0]);
         let tmpOptionalColumns = _.cloneDeep(this.state.optionalcolumns[0]);
@@ -784,21 +798,37 @@ export class TaskList extends Component {
         let filters = UtilService.localStore({ type: 'get', key: "su_task_list_"+this.state.taskType });
         if(filters.length > 0 ) {
             for( const filter of filters) {
-            if (filter.id === 'Start Time') {
+            if (filter.id === 'Observation Start Time') {
+                const values = filter.value;
+                if (values[0]) {
+                    this.filterQry += 'on_sky_start_time_after='+ moment(new Date(values[0])).format("YYYY-MM-DDTHH:mm:ss")+".000Z&";
+                }
+                if (values[1]) {
+                    this.filterQry += 'on_sky_start_time_before='+moment(new Date(values[1])).format("YYYY-MM-DDTHH:mm:ss")+".000Z&";
+                }
+            }   else if (filter.id === 'Observation End Time') {
+                const values = filter.value;
+                if (values[0]) {
+                    this.filterQry += 'on_sky_stop_time_after='+ moment(new Date(values[0])).format("YYYY-MM-DDTHH:mm:ss")+".000Z&";
+                }
+                if (values[1]) {
+                    this.filterQry += 'on_sky_stop_time_before='+moment(new Date(values[1])).format("YYYY-MM-DDTHH:mm:ss")+".000Z&";
+                }
+            }   if (filter.id === 'Process Start Time') {
                 const values = filter.value;
                 if (values[0]) {
-                    this.filterQry += 'start_time_after='+ moment(new Date(values[0])).format("YYYY-MM-DDTHH:mm:ss")+".000Z&";
+                    this.filterQry += 'process_start_time_after='+ moment(new Date(values[0])).format("YYYY-MM-DDTHH:mm:ss")+".000Z&";
                 }
                 if (values[1]) {
-                    this.filterQry += 'start_time_before='+moment(new Date(values[1])).format("YYYY-MM-DDTHH:mm:ss")+".000Z&";
+                    this.filterQry += 'process_start_time_before='+moment(new Date(values[1])).format("YYYY-MM-DDTHH:mm:ss")+".000Z&";
                 }
-            }   else if (filter.id === 'End Time') {
+            }   else if (filter.id === 'Process End Time') {
                 const values = filter.value;
                 if (values[0]) {
-                    this.filterQry += 'stop_time_after='+ moment(new Date(values[0])).format("YYYY-MM-DDTHH:mm:ss")+".000Z&";
+                    this.filterQry += 'process_stop_time_after='+ moment(new Date(values[0])).format("YYYY-MM-DDTHH:mm:ss")+".000Z&";
                 }
                 if (values[1]) {
-                    this.filterQry += 'stop_time_before='+moment(new Date(values[1])).format("YYYY-MM-DDTHH:mm:ss")+".000Z&";
+                    this.filterQry += 'process_stop_time_before='+moment(new Date(values[1])).format("YYYY-MM-DDTHH:mm:ss")+".000Z&";
                 }
             }   else if (filter.id === 'Scheduling Unit Name') {
                 if (this.state.taskType === 'Draft') {
diff --git a/SAS/TMSS/frontend/tmss_webapp/src/routes/Task/summary.js b/SAS/TMSS/frontend/tmss_webapp/src/routes/Task/summary.js
index 56b5ef83b03f165958e39229099cbba352e53b6f..270dca3aa1069184e1863b249dbbeef58f045e96 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/routes/Task/summary.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/routes/Task/summary.js
@@ -58,7 +58,7 @@ export class TaskSummary extends Component {
                             <label>Subtasks:</label>
                             <ViewTable 
                                 data={taskDetails.subtasks} 
-                                defaultcolumns={[{subtask_type: "Subtask Type", id: "Subtask ID", start_time:{name:"Start Time", format:UIConstants.CALENDAR_DATETIME_FORMAT}, stop_time:{name:"End Time", format:UIConstants.CALENDAR_DATETIME_FORMAT}, state_value: "Status"}]}
+                                defaultcolumns={[{subtask_type: "Subtask Type", id: "Subtask ID", on_sky_start_time:{name:"Start Time", format:UIConstants.CALENDAR_DATETIME_FORMAT}, on_sky_stop_time:{name:"End Time", format:UIConstants.CALENDAR_DATETIME_FORMAT}, state_value: "Status"}]}
                                 optionalcolumns={[{actionpath: "actionpath"}]}
                                 columnclassname={[{"Subtask ID": "filter-input-50","Subtask Type":"filter-input-75", "Start Time": "filter-input-75", "End Time": "filter-input-75",
                                                     "Status": "filter-input-75"}]}
diff --git a/SAS/TMSS/frontend/tmss_webapp/src/routes/Task/view.js b/SAS/TMSS/frontend/tmss_webapp/src/routes/Task/view.js
index 0190d3f5754533c374bc62055514ac8ec3e56957..47a04d5e6917b964d093ebda2efcfb996294f464 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/routes/Task/view.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/routes/Task/view.js
@@ -52,16 +52,26 @@ export class TaskView extends Component {
                     filter:"select",
                     tooltip: 'Select Subtask status'
                 },
-                start_time: {
+                on_sky_start_time: {
                     name: "Start Time",
                     filter: "flatpickrDateRange",
                     format:UIConstants.CALENDAR_DATETIME_FORMAT,
                 },
-                stop_time: {
+                on_sky_stop_time: {
                     name: "End Time",
                     filter: "flatpickrDateRange",
                     format:UIConstants.CALENDAR_DATETIME_FORMAT
                 },
+                process_start_time: {
+                    name: "Process Start Time",
+                    filter: "flatpickrDateRange",
+                    format:UIConstants.CALENDAR_DATETIME_FORMAT,
+                },
+                process_stop_time: {
+                    name: "Process End Time",
+                    filter: "flatpickrDateRange",
+                    format:UIConstants.CALENDAR_DATETIME_FORMAT
+                },
                 duration:{
                     name:"Duration (HH:mm:ss)",
                     filter: "durationMinMax",
@@ -69,6 +79,7 @@ export class TaskView extends Component {
                 },
                 parset: {
                     name: "Link to Parset",
+                    filter: 'none',
                     tooltip: 'Enter few characters'
                 }
             }],
@@ -171,7 +182,7 @@ export class TaskView extends Component {
             TaskService.getTaskDetails(taskType, taskId, this.fetchSubtask)
             .then(async(task) => {
                 if (task) {
-                    taskType === 'blueprint' && this.getSubtaskDetails(task.subtasks);
+                    taskType === 'blueprint' && await this.getSubtaskDetails(task.subtasks);
                     const suId = taskType==='draft'?task.scheduling_unit_draft_id:task.scheduling_unit_blueprint_id;
                     let loadTasks = false;
                     const taskTemplate = await TaskService.getTaskTemplate(task.specifications_template_id);
@@ -209,10 +220,12 @@ export class TaskView extends Component {
             subtaskRow['type'] = subtask.subtask_type;
             subtaskRow['id'] = subtask.id;
             subtaskRow['status'] = subtask.state_value;
-            subtaskRow['start_time']= subtask.start_time;
-            subtaskRow['stop_time']= subtask.stop_time;
+            subtaskRow['on_sky_start_time']= subtask.on_sky_start_time;
+            subtaskRow['on_sky_stop_time']= subtask.on_sky_stop_time;
+            subtaskRow['process_start_time']= subtask.process_start_time;
+            subtaskRow['process_stop_time']= subtask.process_stop_time;
             subtaskRow['duration']= moment.utc((subtask.duration || 0) * 1000).format(UIConstants.CALENDAR_TIME_FORMAT);
-            subtaskRow['parset']=  `https://proxy.lofar.eu/inspect/${subtask.id}/rtcp-${subtask.id}.parset`;
+            subtaskRow['parset']=  `Parset`;
             subtaskRow['links'] = ['Link to Parset'];
             subtaskRow['linksURL'] = {
                                         'Link to Parset': `https://proxy.lofar.eu/inspect/${subtask.id}/rtcp-${subtask.id}.parset`
@@ -472,17 +485,28 @@ export class TaskView extends Component {
                                             <label className="col-lg-2 col-md-2 col-sm-12">Updated At</label>
                                             <span className="col-lg-4 col-md-4 col-sm-12">{moment.utc(this.state.task.updated_at).format(UIConstants.CALENDAR_DATETIME_FORMAT)}</span>
                                         </div>
+                                        {this.state.taskType === 'blueprint' && this.state.task.task_type === 'observation' &&
                                         <div className="p-grid">
-                                            <label className="col-lg-2 col-md-2 col-sm-12">Start Time</label>
-                                            <span className="col-lg-4 col-md-4 col-sm-12">{this.state.task.start_time?moment(this.state.task.start_time,moment.ISO_8601).format(UIConstants.CALENDAR_DATETIME_FORMAT):""}</span>
-                                            <label className="col-lg-2 col-md-2 col-sm-12">End Time</label>
-                                            <span className="col-lg-4 col-md-4 col-sm-12">{this.state.task.end_time?moment(this.state.task.end_time,moment.ISO_8601).format(UIConstants.CALENDAR_DATETIME_FORMAT):""}</span>
-                                        </div>
+                                            <label className="col-lg-2 col-md-2 col-sm-12">Observation Start Time</label>
+                                            <span className="col-lg-4 col-md-4 col-sm-12">{this.state.task.on_sky_start_time?moment(this.state.task.on_sky_start_time,moment.ISO_8601).format(UIConstants.CALENDAR_DATETIME_FORMAT):""}</span>
+                                            <label className="col-lg-2 col-md-2 col-sm-12">Observation End Time</label>
+                                            <span className="col-lg-4 col-md-4 col-sm-12">{this.state.task.on_sky_stop_time?moment(this.state.task.on_sky_stop_time,moment.ISO_8601).format(UIConstants.CALENDAR_DATETIME_FORMAT):""}</span>
+                                        </div>}
+                                        {this.state.taskType === 'blueprint' &&
+                                        <div className="p-grid">
+                                            <label className="col-lg-2 col-md-2 col-sm-12">Process Start Time</label>
+                                            <span className="col-lg-4 col-md-4 col-sm-12">{this.state.task.process_start_time?moment(this.state.task.process_start_time,moment.ISO_8601).format(UIConstants.CALENDAR_DATETIME_FORMAT):""}</span>
+                                            <label className="col-lg-2 col-md-2 col-sm-12">Process End Time</label>
+                                            <span className="col-lg-4 col-md-4 col-sm-12">{this.state.task.process_stop_time?moment(this.state.task.process_stop_time,moment.ISO_8601).format(UIConstants.CALENDAR_DATETIME_FORMAT):""}</span>
+                                        </div>}
                                         <div className="p-grid">
                                             {/* <label className="col-lg-2 col-md-2 col-sm-12">Tags</label>
                                             <Chips className="col-lg-4 col-md-4 col-sm-12 chips-readonly" disabled value={this.state.task.tags}></Chips> */}
-                                            <label className="col-lg-2 col-md-2 col-sm-12">Status</label>
-                                            <span className="col-lg-4 col-md-4 col-sm-12">{this.state.task.status}</span>
+                                            {this.state.taskType === 'blueprint' && 
+                                            <>
+                                                <label className="col-lg-2 col-md-2 col-sm-12">Status</label>
+                                                <span className="col-lg-4 col-md-4 col-sm-12">{this.state.task.status}</span>
+                                            </>}
                                             {this.state.schedulingUnit &&
                                             <>
                                                 <label className="col-lg-2 col-md-2 col-sm-12">Scheduling Unit</label>
diff --git a/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/view.js b/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/view.js
index 8e709b1c4bc94a5c394a8f25f8637585988c77a9..72822aff42d8294eaee630d059494ca43767a725 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/view.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/view.js
@@ -99,7 +99,8 @@ export class TimelineView extends Component {
             unschedulableBlueprint: {},
             datasetStartTime: null, datasetEndTime:null,
             showDialog: false,
-            popPosition: {display: 'none'}
+            popPosition: {display: 'none'},
+            isOnSkyView: this.timelineUIAttributes.isOnSkyView || false,     // Flag to show on sky view in normal timeline view
         }
         this.STATUS_BEFORE_SCHEDULED = ['defining', 'defined', 'schedulable'];  // Statuses before scheduled to get station_group
         this.allStationsGroup = [];
@@ -258,6 +259,17 @@ export class TimelineView extends Component {
                 this.loadSUsAheadAndTrail(null, datasetEndTime, null, endTime);
             }
         }
+        // Add dummy variables start_time and stop_time to minimize code changes and switch between different flavours
+        _.map(schedulingUnits.original, su => {
+            su.start_time = this.state.stationView || this.state.isOnSkyView?su.on_sky_start_time:(su.process_start_time || su.on_sky_start_time);
+            su.stop_time = this.state.stationView || this.state.isOnSkyView?su.on_sky_stop_time:(su.process_stop_time || su.on_sky_stop_time);
+            _.map(su.task_blueprints, taskBp => {
+                taskBp.start_time = this.state.stationView || this.state.isOnSkyView?taskBp.on_sky_start_time:(taskBp.process_start_time || taskBp.on_sky_start_time);
+                taskBp.stop_time = this.state.stationView || this.state.isOnSkyView?taskBp.on_sky_stop_time:(taskBp.process_stop_time || taskBp.on_sky_stop_time);
+                return taskBp;
+            });
+            return su;
+        });
         // Returning the data for the timeline only or the existing data.
         return schedulingUnits;
     }
@@ -1004,7 +1016,7 @@ export class TimelineView extends Component {
         return stations;
     }
 
-    setStationView(e) {
+    async setStationView(e) {
         this.closeSummaryPanel();
         let selectedGroups = this.state.selectedStationGroup;
         // Store selected view and station group. Remove for default values. Default is all station groups.
@@ -1020,7 +1032,15 @@ export class TimelineView extends Component {
             delete this.timelineUIAttributes["stationView"];
         }
         this.timelineCommonUtils.storeUIAttributes(this.timelineUIAttributes);
-        this.setState({ stationView: e.value, selectedStationGroup: selectedGroups });
+        await this.setState({ stationView: e.value, selectedStationGroup: selectedGroups });
+        this.dateRangeCallback(this.state.currentStartTime, this.state.currentEndTime, false);
+    }
+
+    async setOnSkyView(value) {
+        await this.setState({isOnSkyView: value});
+        this.timelineUIAttributes['isOnSkyView'] = value;
+        this.timelineCommonUtils.storeUIAttributes(this.timelineUIAttributes);
+        this.dateRangeCallback(this.state.currentStartTime, this.state.currentEndTime, false);
     }
 
     showOptionMenu(event) {
@@ -1385,10 +1405,21 @@ export class TimelineView extends Component {
                                 }
                             </div>
                             <div className={`timeline-view-toolbar p-grid ${this.state.stationView && 'alignTimeLineHeader'}`}>
-                                <div className="sub-header col-lg-2">
+                                <div className={`sub-header ${this.state.stationView?"col-lg-2":"col-lg-1"}`}>
                                     <label >Station View</label>
                                     <InputSwitch checked={this.state.stationView} onChange={(e) => { this.setStationView(e) }} />
                                 </div>
+                                {!this.state.stationView &&
+                                <div className="sub-header col-lg-1">
+                                    {/* <label >On Sky View</label>
+                                    <InputSwitch checked={this.state.isOnSkyView} onChange={(e) => { this.setOnSkyView(e.value)}} /> */}
+                                    <Button className="p-button-rounded toggle-btn"
+                                            tooltip={this.state.isOnSkyView?"Turn off On-Sky View":"Turn on On-Sky View"}
+                                            style={{minWidth: "50px", backgroundColor: this.state.isOnSkyView?"#007AD9":"#cccccc", color: this.state.isOnSkyView?"#ffffff":"#7e8286"}}
+                                            label="On-Sky View" 
+                                            onClick={e => this.setOnSkyView(!this.state.isOnSkyView)} />
+                                </div>
+                                }
                                 {this.state.stationView &&
                                 <>
                                     <div className="sub-header col-lg-2">
diff --git a/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/week.view.js b/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/week.view.js
index a8aca7e145674ffcb6bd3d5884c0ca4221700f08..a2ba1f2ed222b2acbd015e21d00f6b712b332473 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/week.view.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/week.view.js
@@ -24,6 +24,7 @@ import UIConstants from '../../utils/ui.constants';
 import { TieredMenu } from 'primereact/tieredmenu';
 import { InputSwitch } from 'primereact/inputswitch';
 import { Dropdown } from 'primereact/dropdown';
+import { Button } from 'primereact/button';
 import ReservationSummary from '../Reservation/reservation.summary';
 import TimelineListTabs from './list.tabs';
 import TimelineCommonUtils from './common.utils';
@@ -78,7 +79,8 @@ export class WeekTimelineView extends Component {
             datasetStartTime: null, datasetEndTime:null,
             showDialog: false,
             userrole: AuthStore.getState(),
-            popPosition: {display: 'none'}
+            popPosition: {display: 'none'},
+            isOnSkyView: this.timelineUIAttributes.isOnSkyWeekView || false,     // Flag to show on sky view in week view
         }
         this.STATUS_BEFORE_SCHEDULED = ['defining', 'defined', 'schedulable'];  // Statuses before scheduled to get station_group
         this.reservations = [];
@@ -204,6 +206,17 @@ export class WeekTimelineView extends Component {
                 this.loadSUsAheadAndTrail(null, datasetEndTime, null, endTime);
             }
         }
+        // Add dummy variables start_time and stop_time to minimize code changes and switch between different flavours
+        _.map(schedulingUnits.original, su => {
+            su.start_time = this.state.stationView || this.state.isOnSkyView?su.on_sky_start_time:(su.process_start_time || su.on_sky_start_time);
+            su.stop_time = this.state.stationView || this.state.isOnSkyView?su.on_sky_stop_time:(su.process_stop_time || su.on_sky_stop_time);
+            _.map(su.task_blueprints, taskBp => {
+                taskBp.start_time = this.state.stationView || this.state.isOnSkyView?taskBp.on_sky_start_time:(taskBp.process_start_time || taskBp.on_sky_start_time);
+                taskBp.stop_time = this.state.stationView || this.state.isOnSkyView?taskBp.on_sky_stop_time:(taskBp.process_stop_time || taskBp.on_sky_stop_time);
+                return taskBp;
+            });
+            return su;
+        });
         // Returning the data for the timeline only or the existing data.
         return schedulingUnits;
     }
@@ -375,7 +388,7 @@ export class WeekTimelineView extends Component {
         } else {
             const fetchDetails = !this.state.selectedItem || item.id !== this.state.selectedItem.id
             this.setState({
-                selectedItem: item, isSUDetsVisible: true,
+                selectedItem: item, isSUDetsVisible: true, isReservDetsVisible: false,
                 isSummaryLoading: fetchDetails,
                 suTaskList: !fetchDetails ? this.state.suTaskList : [],
                 canExtendSUList: false, canShrinkSUList: false
@@ -825,6 +838,14 @@ export class WeekTimelineView extends Component {
         this.storeUIAttributes();
     }
 
+    async setOnSkyView(value) {
+        await this.setState({isOnSkyView: value});
+        this.timelineUIAttributes['isOnSkyWeekView'] = value;
+        let updatedItemGroupData = await this.dateRangeCallback(this.state.startTime, this.state.endTime, true);
+        this.timeline.updateTimeline(updatedItemGroupData);
+        this.storeUIAttributes();
+    }
+
     /**
      * Add Week Reservations during the visible timeline period
      * @param {Array} items 
@@ -1119,6 +1140,15 @@ export class WeekTimelineView extends Component {
                                         <InputSwitch checked={this.state.reservationEnabled} onChange={(e) => { this.showReservations(e) }} />
 
                                     </div>
+                                    <div className="sub-header">
+                                        {/* <label >On Sky View</label>
+                                        <InputSwitch checked={this.state.isOnSkyView} onChange={(e) => { this.setOnSkyView(e.value)}} /> */}
+                                        <Button className="p-button-rounded toggle-btn"
+                                                tooltip={this.state.isOnSkyView?"Turn off On-Sky View":"Turn on On-Sky View"}
+                                                style={{minWidth: "50px", backgroundColor: this.state.isOnSkyView?"#007AD9":"#cccccc", color: this.state.isOnSkyView?"#ffffff":"#7e8286"}}
+                                                label="On-Sky View" 
+                                                onClick={e => this.setOnSkyView(!this.state.isOnSkyView)} />
+                                    </div>
 
                                     {this.state.reservationEnabled &&
                                         <div className="sub-header">
diff --git a/SAS/TMSS/frontend/tmss_webapp/src/services/schedule.service.js b/SAS/TMSS/frontend/tmss_webapp/src/services/schedule.service.js
index 86aac18f01bbd538adffca0ba491a8602d17928e..cfbb58bc0f5479a8c2e315f1fff2a96c435c60dd 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/services/schedule.service.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/services/schedule.service.js
@@ -17,6 +17,9 @@ const SU_FETCH_FIELDS = [ "id",
                             "do_cancel",
                             "start_time",
                             "stop_time",
+                            "process_start_time", "process_stop_time",
+                            "on_sky_start_time", "on_sky_stop_time",
+                            "scheduled_on_sky_start_time", "scheduled_on_sky_stop_time",
                             "duration",
                             "priority_rank",
                             "updated_at",
@@ -32,6 +35,9 @@ const SU_FETCH_FIELDS = [ "id",
                             "task_blueprints.status",
                             "task_blueprints.start_time",
                             "task_blueprints.stop_time",
+                            "task_blueprints.process_start_time", "task_blueprints.process_stop_time",
+                            "task_blueprints.on_sky_start_time", "task_blueprints.on_sky_stop_time",
+                            "task_blueprints.scheduled_on_sky_start_time", "task_blueprints.scheduled_on_sky_stop_time",
                             "task_blueprints.task_type",
                             "task_blueprints.do_cancel",
                             "task_blueprints.duration",
@@ -137,7 +143,7 @@ const ScheduleService = {
         let blueprints = [];
         try {
             let url = `/api/scheduling_unit_blueprint/?ordering=name&expand=${SU_EXPAND_FIELDS.join()}&fields=${SU_FETCH_FIELDS.join()}`;
-            url = `${url}&start_time_before=${endTime || ''}&stop_time_after=${startTime || ''}`;
+            url = `${url}&scheduled_on_sky_start_time_before=${endTime || ''}&scheduled_on_sky_stop_time_after=${startTime || ''}`;
             let initialResponse = await axios.get(url);
             const totalCount = initialResponse.data.count;
             const initialCount = initialResponse.data.results.length
@@ -147,6 +153,11 @@ const ScheduleService = {
                 let secondResponse = await axios.get(url);
                 blueprints = blueprints.concat(secondResponse.data.results);
             }
+            _.map(blueprints, su => {
+                su.start_time = su.scheduled_on_sky_start_time;
+                su.stop_time = su.scheduled_on_sky_stop_time;
+                return su;
+            });
         }   catch(error) {
             console.error('[schedule.services.getExpandedSUList]',error);
         }