Network Time Protocol provides the service of time synchronisation for all devices on the network (which have NTP service available and configured).
NTP service usually listens on UDP port 123. It will most often distribute UTC (Coordinated Universal Time) along with well planed leap second modifications. But no other information like time zone can be forwarded with it. It means that your devices can get the clocks sync with NTP but you first need to be sure that you configured time-zone on that device so that he can show local time.