first commit

common/resources/client/i18n/use-user-timezone.ts

@@ -0,0 +1,17 @@
+import {useContext, useMemo} from 'react';
+import {BoostrapDataContext} from '../core/bootstrap-data/bootstrap-data-context';
+import {getLocalTimeZone} from '@internationalized/date';
+
+export function useUserTimezone(): string {
+  const {
+    data: {user, settings},
+  } = useContext(BoostrapDataContext);
+  const defaultTimezone = settings.dates.default_timezone;
+  const preferredTimezone = user?.timezone || defaultTimezone || 'auto';
+
+  return useMemo(() => {
+    return !preferredTimezone || preferredTimezone === 'auto'
+      ? getLocalTimeZone()
+      : preferredTimezone;
+  }, [preferredTimezone]);
+}