Seting/Changing Time Zone Information Programaticaly in Linux

Just change the ~/.cshrc file as below.

for example:

#setenv TZ US/Mountain
setenv TZ Taiwan

Hope this will help.

Just change the ~/.cshrc file as below.

for example:

#setenv TZ US/Mountain
setenv TZ Taiwan

Hope this will help.

Tanks for your answer.
I know how to do that.
The problem is to change the mont, day and hour for the first and second change of hour.
Something like this:
TZ=eet-02eest-03,M3.5.0/2,M9.5.0/2
TZ=eet-02eest-03,M3.5.0/2,M10.5.0/3
(this is an example from QNX)
If you notice I'v change the month and hour for the second hour modification.

Adjusted points from 50 to 70

Take a look at the (date) command. I think it will do what you want. Then to set your hardware clock (setclock) makes it whatever the date command set it to. RH6.1

I have to change it not to see it ...

'%z'
     RFC-822 style numeric time zone (e.g., -0600 or +0100), or nothing
     if no time zone is determinable.  This value reflects the
     _current_ time zone.  It isn't changed by the `--date' option.

`%Z'
     time zone (e.g., EDT), or nothing if no timezone is determinable.
     Note that this value reflects the _current_ time zone.  It isn't
     changed by the `--date' option.

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