fix(web): timezone handling in search filter (#7384)

web/src/lib/utils/date-time.ts

@@ -0,0 +1,17 @@
+import { DateTime, Duration } from 'luxon';
+
+/**
+ * Convert time like `01:02:03.456` to seconds.
+ */
+export function timeToSeconds(time: string) {
+  const parts = time.split(':');
+  parts[2] = parts[2].split('.').slice(0, 2).join('.');
+
+  const [hours, minutes, seconds] = parts.map(Number);
+
+  return Duration.fromObject({ hours, minutes, seconds }).as('seconds');
+}
+
+export function parseUtcDate(date: string) {
+  return DateTime.fromISO(date, { zone: 'UTC' }).toUTC();
+}