diff --git a/ui-ngx/src/app/shared/models/time/time.models.ts b/ui-ngx/src/app/shared/models/time/time.models.ts
index fd2b4f52fa..235df14bb0 100644
--- a/ui-ngx/src/app/shared/models/time/time.models.ts
+++ b/ui-ngx/src/app/shared/models/time/time.models.ts
@@ -452,6 +452,15 @@ export const calculateIntervalStartTime = (interval: QuickTimeInterval, currentD
     case QuickTimeInterval.PREVIOUS_MONTH:
       currentDate.subtract(1, 'months');
       return currentDate.startOf('month');
+    case QuickTimeInterval.PREVIOUS_QUARTER:
+      currentDate.subtract(1, 'quarter');
+      return currentDate.startOf('quarter');
+    case QuickTimeInterval.PREVIOUS_HALF_YEAR:
+      if (currentDate.get('quarter') < 3) {
+        return currentDate.startOf('year').subtract(2, 'quarters');
+      } else {
+        return currentDate.startOf('year');
+      }
     case QuickTimeInterval.PREVIOUS_YEAR:
       currentDate.subtract(1, 'years');
       return currentDate.startOf('year');