Timestamp component

frontend/src/app/shared/components/timestamp/timestamp.component.ts

@@ -0,0 +1,25 @@
+import { ChangeDetectionStrategy, Component, Input, OnChanges } from '@angular/core';
+
+@Component({
+  selector: 'app-timestamp',
+  templateUrl: './timestamp.component.html',
+  styleUrls: ['./timestamp.component.scss'],
+  changeDetection: ChangeDetectionStrategy.OnPush,
+})
+export class TimestampComponent implements OnChanges {
+  @Input() unixTime: number;
+  @Input() dateString: string;
+
+  seconds: number;
+
+  constructor() { }
+
+  ngOnChanges(): void {
+    if (this.unixTime) {
+      this.seconds = this.unixTime;
+    } else if (this.dateString) {
+      this.seconds  = new Date(this.dateString).getTime() / 1000
+    }
+  }
+
+}