Post rebase fixes

Author: tristanlabelle

app/web/features/communities/events/EventTimeChanger.tsx

@@ -34,11 +34,13 @@ interface EventTimeChangerProps
 
 function toPlainDateTime(
   timestamp: Timestamp.AsObject,
+  timezone?: string,
 ): Temporal.PlainDateTime {
   const legacyDate = timestamp2Date(timestamp);
   const instant = Temporal.Instant.fromEpochMilliseconds(legacyDate.getTime());
-  // FIXME(#8064): Event times should be interpreted in their timezones.
-  const zoned = instant.toZonedDateTimeISO(Temporal.Now.timeZoneId());
+  const zoned = instant.toZonedDateTimeISO(
+    timezone ?? Temporal.Now.timeZoneId(),
+  );
   return zoned.toPlainDateTime();
 }