diff --git a/frontend/src/app/features/in-app-notifications/entry/actors-line/in-app-notification-actors-line.component.html b/frontend/src/app/features/in-app-notifications/entry/actors-line/in-app-notification-actors-line.component.html
index 16ebc61cac34..1d6adf2d0b30 100644
--- a/frontend/src/app/features/in-app-notifications/entry/actors-line/in-app-notification-actors-line.component.html
+++ b/frontend/src/app/features/in-app-notifications/entry/actors-line/in-app-notification-actors-line.component.html
@@ -1,8 +1,6 @@
-<div
-  class="op-ian-actors--date"
-  [title]="fixedTime"
-  [textContent]="relativeTime$ | async"
-></div>
+<op-in-app-notification-relative-time
+  [notification]="notification"
+/>
 <div class="op-ian-actors--container">
   <ng-container *ngFor="let actor of actors | slice:0:3; let idx = index; let last = last">
     <span *ngIf="last && actors.length > 1 && actors.length < 4" textContent=" {{ text.and }} "></span>
diff --git a/frontend/src/app/features/in-app-notifications/entry/actors-line/in-app-notification-actors-line.component.sass b/frontend/src/app/features/in-app-notifications/entry/actors-line/in-app-notification-actors-line.component.sass
index 92a4de952732..376f23ed350a 100644
--- a/frontend/src/app/features/in-app-notifications/entry/actors-line/in-app-notification-actors-line.component.sass
+++ b/frontend/src/app/features/in-app-notifications/entry/actors-line/in-app-notification-actors-line.component.sass
@@ -7,11 +7,6 @@
   align-items: center
   color: var(--fgColor-muted)
 
-  &--date
-    @include text-shortener
-    max-width: 100%
-    line-height: 1rem
-
   &--container
     @include text-shortener
     display: flex
diff --git a/frontend/src/app/features/in-app-notifications/entry/relative-time/in-app-notification-relative-time.component.html b/frontend/src/app/features/in-app-notifications/entry/relative-time/in-app-notification-relative-time.component.html
new file mode 100644
index 000000000000..982ee91f405a
--- /dev/null
+++ b/frontend/src/app/features/in-app-notifications/entry/relative-time/in-app-notification-relative-time.component.html
@@ -0,0 +1,5 @@
+<div
+  class="op-ian-relative-time"
+  [title]="fixedTime"
+  [textContent]="relativeTime$ | async">
+</div>
diff --git a/frontend/src/app/features/in-app-notifications/entry/relative-time/in-app-notification-relative-time.component.sass b/frontend/src/app/features/in-app-notifications/entry/relative-time/in-app-notification-relative-time.component.sass
new file mode 100644
index 000000000000..547e9c4b48d7
--- /dev/null
+++ b/frontend/src/app/features/in-app-notifications/entry/relative-time/in-app-notification-relative-time.component.sass
@@ -0,0 +1,6 @@
+@import "helpers"
+
+.op-ian-relative-time
+  @include text-shortener
+  max-width: 100%
+  line-height: 1rem
diff --git a/frontend/src/app/features/in-app-notifications/entry/relative-time/in-app-notification-relative-time.component.ts b/frontend/src/app/features/in-app-notifications/entry/relative-time/in-app-notification-relative-time.component.ts
new file mode 100644
index 000000000000..3f3b1801cff4
--- /dev/null
+++ b/frontend/src/app/features/in-app-notifications/entry/relative-time/in-app-notification-relative-time.component.ts
@@ -0,0 +1,63 @@
+import {
+  ChangeDetectionStrategy,
+  Component,
+  Input,
+  OnInit,
+  ViewEncapsulation,
+} from '@angular/core';
+import { TimezoneService } from 'core-app/core/datetime/timezone.service';
+import { I18nService } from 'core-app/core/i18n/i18n.service';
+import { INotification } from 'core-app/core/state/in-app-notifications/in-app-notification.model';
+import { Observable, timer } from 'rxjs';
+import { distinctUntilChanged, map } from 'rxjs/operators';
+
+@Component({
+  selector: 'op-in-app-notification-relative-time',
+  templateUrl: './in-app-notification-relative-time.component.html',
+  styleUrls: ['./in-app-notification-relative-time.component.sass'],
+  changeDetection: ChangeDetectionStrategy.OnPush,
+  encapsulation: ViewEncapsulation.None,
+})
+export class InAppNotificationRelativeTimeComponent implements OnInit {
+  @Input() notification:INotification;
+  @Input() hasActorByLine:boolean = true;
+
+  // Fixed notification time
+  fixedTime:string;
+
+  // Format relative elapsed time (n seconds/minutes/hours ago)
+  // at an interval for auto updating
+  relativeTime$:Observable<string>;
+
+  text = {
+    updated_by_at: (age:string):string => this.I18n.t(
+      'js.notifications.center.text_update_date_by',
+      { date: age },
+    ),
+  };
+
+  constructor(
+    private I18n:I18nService,
+    private timezoneService:TimezoneService,
+  ) { }
+
+  ngOnInit():void {
+    this.buildTime();
+  }
+
+  private buildTime() {
+    this.fixedTime = this.timezoneService.formattedDatetime(this.notification.createdAt);
+    this.relativeTime$ = timer(0, 10000)
+      .pipe(
+        map(() => {
+          const time = this.timezoneService.formattedRelativeDateTime(this.notification.createdAt);
+          if (this.hasActorByLine && this.notification._links.actor) {
+            return this.text.updated_by_at(time);
+          }
+
+          return time;
+        }),
+        distinctUntilChanged(),
+      );
+  }
+}
diff --git a/frontend/src/app/features/in-app-notifications/in-app-notifications.module.ts b/frontend/src/app/features/in-app-notifications/in-app-notifications.module.ts
index aade9f5cc27e..2839fd792a19 100644
--- a/frontend/src/app/features/in-app-notifications/in-app-notifications.module.ts
+++ b/frontend/src/app/features/in-app-notifications/in-app-notifications.module.ts
@@ -1,31 +1,32 @@
-import { NgModule } from '@angular/core';
-import { OpSharedModule } from 'core-app/shared/shared.module';
+import { ScrollingModule } from '@angular/cdk/scrolling';
 import { CommonModule } from '@angular/common';
-import { IconModule } from 'core-app/shared/components/icon/icon.module';
+import { NgModule } from '@angular/core';
 import {
   InAppNotificationBellComponent,
 } from 'core-app/features/in-app-notifications/bell/in-app-notification-bell.component';
-import {
-  InAppNotificationEntryComponent,
-} from 'core-app/features/in-app-notifications/entry/in-app-notification-entry.component';
-import { OpenprojectPrincipalRenderingModule } from 'core-app/shared/components/principal/principal-rendering.module';
-import { ScrollingModule } from '@angular/cdk/scrolling';
+import { IanBellService } from 'core-app/features/in-app-notifications/bell/state/ian-bell.service';
 import {
   InAppNotificationCenterComponent,
 } from 'core-app/features/in-app-notifications/center/in-app-notification-center.component';
+import { IanCenterService } from 'core-app/features/in-app-notifications/center/state/ian-center.service';
+import {
+  InAppNotificationsDateAlertsUpsaleComponent,
+} from 'core-app/features/in-app-notifications/date-alerts-upsale/ian-date-alerts-upsale.component';
+import {
+  InAppNotificationEntryComponent,
+} from 'core-app/features/in-app-notifications/entry/in-app-notification-entry.component';
 import { OpenprojectWorkPackagesModule } from 'core-app/features/work-packages/openproject-work-packages.module';
-import { DynamicModule } from 'ng-dynamic-component';
-import { InAppNotificationStatusComponent } from './entry/status/in-app-notification-status.component';
+import { IconModule } from 'core-app/shared/components/icon/icon.module';
 import {
   OpenprojectContentLoaderModule,
 } from 'core-app/shared/components/op-content-loader/openproject-content-loader.module';
-import { IanBellService } from 'core-app/features/in-app-notifications/bell/state/ian-bell.service';
+import { OpenprojectPrincipalRenderingModule } from 'core-app/shared/components/principal/principal-rendering.module';
+import { OpSharedModule } from 'core-app/shared/shared.module';
+import { DynamicModule } from 'ng-dynamic-component';
 import { InAppNotificationActorsLineComponent } from './entry/actors-line/in-app-notification-actors-line.component';
 import { InAppNotificationDateAlertComponent } from './entry/date-alert/in-app-notification-date-alert.component';
-import {
-  InAppNotificationsDateAlertsUpsaleComponent,
-} from 'core-app/features/in-app-notifications/date-alerts-upsale/ian-date-alerts-upsale.component';
-import { IanCenterService } from 'core-app/features/in-app-notifications/center/state/ian-center.service';
+import { InAppNotificationRelativeTimeComponent } from './entry/relative-time/in-app-notification-relative-time.component';
+import { InAppNotificationStatusComponent } from './entry/status/in-app-notification-status.component';
 
 @NgModule({
   declarations: [
@@ -36,6 +37,7 @@ import { IanCenterService } from 'core-app/features/in-app-notifications/center/
     InAppNotificationActorsLineComponent,
     InAppNotificationDateAlertComponent,
     InAppNotificationsDateAlertsUpsaleComponent,
+    InAppNotificationRelativeTimeComponent,
   ],
   imports: [
     OpSharedModule,