Change time formatting in attempt list

web/frontend/src/components/AttemptList.vue

@@ -22,7 +22,10 @@ export default class AttemptList extends Vue {
     {
       key: 'date',
       sortable: true,
-      formatter: (value: string): string => new Date(value).toTimeString(),
+      formatter: (value: string): string => {
+        const d = new Date(value);
+        return `${d.getUTCHours}:${d.getUTCMinutes}:${d.getUTCSeconds}`;
+      },
       sortByFormatted: false,
     },
     {