fix UTC issues

src/pages/api/realtime/[websiteId].ts

@@ -7,14 +7,17 @@ import { methodNotAllowed, ok, unauthorized } from 'next-basics';
 import { getRealtimeData } from 'queries';
 import * as yup from 'yup';
 import { REALTIME_RANGE } from 'lib/constants';
+import { TimezoneTest } from 'lib/yup';
 
 export interface RealtimeRequestQuery {
   websiteId: string;
+  timezone?: string;
 }
 
 const schema = {
   GET: yup.object().shape({
     websiteId: yup.string().uuid().required(),
+    timezone: TimezoneTest,
   }),
 };
 
@@ -23,7 +26,7 @@ export default async (req: NextApiRequestQueryBody<RealtimeRequestQuery>, res: N
   await useValidate(schema, req, res);
 
   if (req.method === 'GET') {
-    const { websiteId } = req.query;
+    const { websiteId, timezone } = req.query;
 
     if (!(await canViewWebsite(req.auth, websiteId))) {
       return unauthorized(res);
@@ -31,7 +34,7 @@ export default async (req: NextApiRequestQueryBody<RealtimeRequestQuery>, res: N
 
     const startDate = subMinutes(startOfMinute(new Date()), REALTIME_RANGE);
 
-    const data = await getRealtimeData(websiteId, { startDate });
+    const data = await getRealtimeData(websiteId, { startDate, timezone });
 
     return ok(res, data);
   }