How are time zones handled in NTP?
NTP uses exclusively the UTC time scale, i.e., the universal time from which all other time zones are derived. Therefore, time zones are not taken into account and no distinction is made between time zones.
Generally, handling time zones is a task of the computer's operating system. All modern operating systems always maintain the system time in UTC. Only when the time is displayed, it is converted to the time zone selected by the user.
The description of the known time zones with offset to UTC, whether and when a daylight saving time switchover takes place, etc., are stored in the operating system and are not part of the time synchronization via NTP.
See also:
How many clients on the network can be synchronized by a LANTIME time server?
How does NTP handle the daylight saving time switchovers?

