diff --git a/frontend/src/app/features/calendar/op-work-packages-calendar.service.ts b/frontend/src/app/features/calendar/op-work-packages-calendar.service.ts
index 2a854e746d6e..c8569e0e911c 100644
--- a/frontend/src/app/features/calendar/op-work-packages-calendar.service.ts
+++ b/frontend/src/app/features/calendar/op-work-packages-calendar.service.ts
@@ -147,8 +147,8 @@ export class OpWorkPackagesCalendarService extends UntilDestroyedMixin {
     }
   }
 
-  async requireNonWorkingDays(date:Date|string) {
-    this.nonWorkingDays = await firstValueFrom(this.dayService.requireNonWorkingYear$(date));
+  async requireNonWorkingDays(start:Date|string, end:Date|string) {
+    this.nonWorkingDays = await firstValueFrom(this.dayService.requireNonWorkingYears$(start, end));
   }
 
   isNonWorkingDay(date:Date|string):boolean {
@@ -160,8 +160,7 @@ export class OpWorkPackagesCalendarService extends UntilDestroyedMixin {
     fetchInfo:{ start:Date, end:Date, timeZone:string },
     projectIdentifier:string|undefined,
   ):Promise<unknown> {
-    await this.requireNonWorkingDays(fetchInfo.start);
-    await this.requireNonWorkingDays(fetchInfo.end);
+    await this.requireNonWorkingDays(fetchInfo.start, fetchInfo.end);
 
     if (this.areFiltersEmpty && this.querySpace.query.value) {
       // nothing to do
diff --git a/frontend/src/app/features/calendar/te-calendar/te-calendar.component.ts b/frontend/src/app/features/calendar/te-calendar/te-calendar.component.ts
index 6216191458f1..8634c3795442 100644
--- a/frontend/src/app/features/calendar/te-calendar/te-calendar.component.ts
+++ b/frontend/src/app/features/calendar/te-calendar/te-calendar.component.ts
@@ -181,8 +181,9 @@ export class TimeEntryCalendarComponent {
     void this.weekdayService.loadWeekdays()
       .toPromise()
       .then(async () => {
-        const date = moment(new Date()).toString();
-        await this.requireNonWorkingDays(date);
+        const startOfWeek = moment().startOf('week').format('YYYY-MM-DD');
+        const endOfWeek = moment().endOf('week').format('YYYY-MM-DD');
+        await this.requireNonWorkingDays(startOfWeek, endOfWeek);
         this.additionalOptions.hiddenDays = this.setHiddenDays(displayedDayss);
         this.calendarOptions$.next(
           this.additionalOptions,
@@ -211,8 +212,8 @@ export class TimeEntryCalendarComponent {
     readonly dayService:DayResourceService,
   ) {}
 
-  async requireNonWorkingDays(date:Date|string) {
-    this.nonWorkingDays = await firstValueFrom(this.dayService.requireNonWorkingYear$(date));
+  async requireNonWorkingDays(start:Date|string, end:Date|string) {
+    this.nonWorkingDays = await firstValueFrom(this.dayService.requireNonWorkingYears$(start, end));
   }
 
   public calendarEventsFunction(
@@ -255,8 +256,7 @@ export class TimeEntryCalendarComponent {
 
   private async buildEntries(entries:TimeEntryResource[], fetchInfo:{ start:Date, end:Date }):Promise<EventInput[]> {
     this.setRatio(entries);
-    await this.requireNonWorkingDays(fetchInfo.start);
-    await this.requireNonWorkingDays(fetchInfo.end);
+    await this.requireNonWorkingDays(fetchInfo.start, fetchInfo.end);
     return this.buildTimeEntryEntries(entries)
       .concat(this.buildAuxEntries(entries, fetchInfo));
   }