How to change the Time Zone in AIX

File involve                  -                       /etc/environment

Reboot Required         -                       Yes (To take effect).

My server location is in EST (Easter Standard Time zone), but some reason it showing me the CST (Central Standard Time Zone). My oslevel is 61.

#date

Mon Feb 11 09:36:02 CST 2013

#

Check your /etc/environment file as well, before going to make changes.

# more /etc/environment

Let’s change the time zone

# smitty chtz_date ⤶

By selecting the approciate time zone, it gives the following message

Command: OK            stdout: yes           stderr: no

Before command completion, additional instructions may appear below.

Any changes made to the time zone will take effect at the next system boot.

OR, you can use the command line to change the time zone as well.

#chtz EST5EDT,M3.2.0/2:00:00,M11.1.0/2:00:00

Let check again, it showing me the same TZ, because changes will take effect after reboot.

#date

Mon Feb 11 09:36:02 CST 2013

#

Any change, to time zone, check your /etc/environment file before going to reboot.

# more /etc/environment

PATH=/usr/bin:/etc:/usr/sbin:/usr/ucb:/usr/bin/X11:/sbin:/usr/java5/jre/bin:/usr/java5/bin

TZ=EST5EDT,M3.2.0/2:00:00,M11.1.0/2:00:00

LANG=en_US

After reboot, Check again, Its done.

guexnim01(/)#date

Mon Feb 11 09:46:00 EST 2013

guexnim01(/)#