I have 2 domain controllers (DC1 and DC2) located in corporate office. DC1 is configured to be NTP server which sync with tick.usno.navy.mil server. We have several offices throughout United States. All client (windows XP) machines use DC1 or DC2 for authentication.
After users change their time on their computers, it'll sync with our NTP server and change it back to incorrect time. Where's in NTP server that control the timezone settings?
How should my NTP server be setup in this situation when we have multiple locations?
Should I allow client machines to use its own timeclock?