Your PC's clock is used to record the time whenever you create or modify files on your PC. You can change the clock's time
and time zone
A time zone
is a region that observes a uniform standard time for legal, commercial, and social purposes. Time zones tend to follow the boundaries of countries and their subdivisions because it is convenient for areas in close commercial or other communication to keep the same time.
This tutorial will show you how to restore the default times zones
in Windows 10
for when the Change time zone
button does not work or you have missing time zones when trying to change the time zone.
You must be signed in as an administrator
to be able to restore the default time zones.