settz - Set system time zone information.
The settz command sets the system time zone information, based on the
current /etc/zoneinfo database configuration. If the /etc/zoneinfo data-
base is not configured, it sets the system time information as if the data-
base is configured to a Coordinated Universal Time (UTC) default.
The settz command does the following:
+ Calls tzset() to get current default time zone information
+ Ignores the TZ environment variable if a value is set for TZ
+ Creates a struct timezone with time zone offset, and daylight savings
+ Calls settimeofday()
The current system date and time are not changed.
This command runs automatically when the system is entering a multiuser run
level. You should use it whenever you change the default time zone informa-
tion with the zic command.
You must have superuser (root) privileges to use this command.
Commands: timezone(3), tzset(3), timezone(8), zic(8)