diff --git a/src/main/angular/src/app/pages/dashboard/air/dashboard-air-tile.component.html b/src/main/angular/src/app/pages/dashboard/air/dashboard-air-tile.component.html
index a5b0a03..d28a7f6 100644
--- a/src/main/angular/src/app/pages/dashboard/air/dashboard-air-tile.component.html
+++ b/src/main/angular/src/app/pages/dashboard/air/dashboard-air-tile.component.html
@@ -1 +1 @@
-<app-values-tile title="Luft" icon="air.svg" [displayList]="getDisplayList()"></app-values-tile>
+<app-values-tile title="Luft" icon="air.svg" [displayList]="getDisplayList()" [now]="now"></app-values-tile>
diff --git a/src/main/angular/src/app/pages/dashboard/air/dashboard-air-tile.component.ts b/src/main/angular/src/app/pages/dashboard/air/dashboard-air-tile.component.ts
index d67387a..0615e7e 100644
--- a/src/main/angular/src/app/pages/dashboard/air/dashboard-air-tile.component.ts
+++ b/src/main/angular/src/app/pages/dashboard/air/dashboard-air-tile.component.ts
@@ -1,4 +1,4 @@
-import {Component} from '@angular/core';
+import {Component, Input} from '@angular/core';
 import {ValuesTileComponent} from "../../../shared/values-tile/values-tile.component";
 import {Display, DisplayOrSeparator} from "../../../api/series/IValue";
 import {SeriesService} from "../../../api/series/series.service";
@@ -14,6 +14,9 @@ import {SeriesService} from "../../../api/series/series.service";
 })
 export class DashboardAirTileComponent {
 
+  @Input()
+  now!: Date;
+
   constructor(
     protected readonly seriesService: SeriesService,
   ) {
diff --git a/src/main/angular/src/app/pages/dashboard/dashboard.component.html b/src/main/angular/src/app/pages/dashboard/dashboard.component.html
index ddf96d1..2337774 100644
--- a/src/main/angular/src/app/pages/dashboard/dashboard.component.html
+++ b/src/main/angular/src/app/pages/dashboard/dashboard.component.html
@@ -1,7 +1,7 @@
 <div class="width100">
-  <app-dashboard-electricity-tile></app-dashboard-electricity-tile>
+  <app-dashboard-electricity-tile [now]="now"></app-dashboard-electricity-tile>
 </div>
 
 <div class="width100">
-  <app-dashboard-air-tile></app-dashboard-air-tile>
+  <app-dashboard-air-tile [now]="now"></app-dashboard-air-tile>
 </div>
diff --git a/src/main/angular/src/app/pages/dashboard/dashboard.component.ts b/src/main/angular/src/app/pages/dashboard/dashboard.component.ts
index 59b1031..5595350 100644
--- a/src/main/angular/src/app/pages/dashboard/dashboard.component.ts
+++ b/src/main/angular/src/app/pages/dashboard/dashboard.component.ts
@@ -1,8 +1,11 @@
-import {Component} from '@angular/core';
+import {Component, OnDestroy, OnInit} from '@angular/core';
 import {JsonPipe, NgForOf} from "@angular/common";
 import {ValuesTileComponent} from "../../shared/values-tile/values-tile.component";
 import {DashboardElectricityTileComponent} from "./electricity/dashboard-electricity-tile.component";
 import {DashboardAirTileComponent} from "./air/dashboard-air-tile.component";
+import {Subscription, timer} from "rxjs";
+
+const UPDATE_INTERVAL_MILLIS = 1000;
 
 @Component({
   selector: 'app-dashboard',
@@ -17,6 +20,18 @@ import {DashboardAirTileComponent} from "./air/dashboard-air-tile.component";
   templateUrl: './dashboard.component.html',
   styleUrl: './dashboard.component.less'
 })
-export class DashboardComponent {
+export class DashboardComponent implements OnInit, OnDestroy {
+
+  protected now: Date = new Date();
+
+  private timer?: Subscription;
+
+  ngOnInit(): void {
+    this.timer = timer(0, UPDATE_INTERVAL_MILLIS).subscribe(() => this.now = new Date());
+  }
+
+  ngOnDestroy(): void {
+    this.timer?.unsubscribe();
+  }
 
 }
diff --git a/src/main/angular/src/app/pages/dashboard/electricity/dashboard-electricity-tile.component.html b/src/main/angular/src/app/pages/dashboard/electricity/dashboard-electricity-tile.component.html
index c9aea84..639bd9c 100644
--- a/src/main/angular/src/app/pages/dashboard/electricity/dashboard-electricity-tile.component.html
+++ b/src/main/angular/src/app/pages/dashboard/electricity/dashboard-electricity-tile.component.html
@@ -1 +1 @@
-<app-values-tile title="Elektrizität" icon="electricity.svg" [displayList]="getDisplayList()"></app-values-tile>
+<app-values-tile title="Elektrizität" icon="electricity.svg" [displayList]="getDisplayList()" [now]="now"></app-values-tile>
diff --git a/src/main/angular/src/app/pages/dashboard/electricity/dashboard-electricity-tile.component.ts b/src/main/angular/src/app/pages/dashboard/electricity/dashboard-electricity-tile.component.ts
index 21d1ef9..df2e146 100644
--- a/src/main/angular/src/app/pages/dashboard/electricity/dashboard-electricity-tile.component.ts
+++ b/src/main/angular/src/app/pages/dashboard/electricity/dashboard-electricity-tile.component.ts
@@ -1,4 +1,4 @@
-import {Component} from '@angular/core';
+import {Component, Input} from '@angular/core';
 import {ValuesTileComponent} from "../../../shared/values-tile/values-tile.component";
 import {Display, DisplayOrSeparator} from "../../../api/series/IValue";
 import {Value} from "../../../api/series/Value";
@@ -19,6 +19,9 @@ const PRODUCED_UNTIL_METER_CHANGE = 287.995;
 })
 export class DashboardElectricityTileComponent {
 
+  @Input()
+  now!: Date;
+
   constructor(
     protected readonly seriesService: SeriesService,
   ) {
diff --git a/src/main/angular/src/app/shared/values-tile/values-tile.component.ts b/src/main/angular/src/app/shared/values-tile/values-tile.component.ts
index 1ecc515..5c952dd 100644
--- a/src/main/angular/src/app/shared/values-tile/values-tile.component.ts
+++ b/src/main/angular/src/app/shared/values-tile/values-tile.component.ts
@@ -1,11 +1,8 @@
-import {Component, Input, OnDestroy, OnInit} from '@angular/core';
+import {Component, Input} from '@angular/core';
 import {Series} from "../../api/series/Series";
 import {DecimalPipe, NgForOf, NgIf} from "@angular/common";
-import {Subscription, timer} from "rxjs";
 import {DisplayOrSeparator} from "../../api/series/IValue";
 
-const UPDATE_INTERVAL_MILLIS = 5000;
-
 const TOO_OLD_MILLIS = 10000;
 
 @Component({
@@ -19,14 +16,21 @@ const TOO_OLD_MILLIS = 10000;
   templateUrl: './values-tile.component.html',
   styleUrl: './values-tile.component.less'
 })
-export class ValuesTileComponent implements OnInit, OnDestroy {
-
-  private now: Date = new Date();
-
-  private timer?: Subscription;
+export class ValuesTileComponent {
 
   protected valid: boolean = false;
 
+  protected _now: Date = new Date();
+
+  @Input()
+  set now(now: Date) {
+    this._now = now;
+  }
+
+  get now(): Date {
+    return this._now;
+  }
+
   @Input()
   title: string = '';
 
@@ -93,16 +97,7 @@ export class ValuesTileComponent implements OnInit, OnDestroy {
     return '';
   }
 
-  ngOnInit(): void {
-    this.timer = timer(0, UPDATE_INTERVAL_MILLIS).subscribe(() => this.displayUpdate());
-  }
-
-  ngOnDestroy(): void {
-    this.timer?.unsubscribe();
-  }
-
   private displayUpdate() {
-    this.now = new Date();
     this.valid = this.displayList.some(d => !!d && !!d.iValue && !!d.iValue.date && (this.now.getTime() - d.iValue.date.getTime()) <= TOO_OLD_MILLIS)
   }