topic Re: ENVironment Variable TZ in Operating System - HP-UX

ENVironment Variable TZ

Peter Gillis — Mon, 10 Jun 2002 23:48:33 GMT

I am hoping someone would like to clarify something for me. We have an 800 series ux machine + UX 11.00 OP sys. Our TZ variable is
TZ=EST-10EDT. Timezone appears to be set for 'mountain' - 420 minutes west of GMT. DST = 1. We are in Sydney, Australia. Do these settings appear to be correct for this region?

Thanks in advance for any info...
Maria.

Re: ENVironment Variable TZ

Michael Tully — Mon, 10 Jun 2002 23:53:59 GMT

Hi Maria,

Your settings should be as follows:

/etc/profile
# Set the TIMEZONE

if [ -r /etc/TIMEZONE ]
then
. /etc/TIMEZONE
else
TZ=EST-10EDT # change this for local time.
export TZ

Contents of /etc/TIMEZONE
$ more /etc/TIMEZONE
TZ=EST-10EDT
export TZ

Also you can check each user, by typing in:

# echo $TZ

HTH
~Michael

Re: ENVironment Variable TZ

Bill Hassell — Tue, 11 Jun 2002 00:02:49 GMT

According to the comments in /usr/lib/tztab, that is correct. The man page for tztab and the comments in the file are good for help on timezones (political as they may be).

Re: ENVironment Variable TZ

Peter Gillis — Tue, 11 Jun 2002 00:45:41 GMT

Michael, It appears the only difference we have to your info is in the else statement of the TIMEZONE portion of /etc/profile. We have ... else
TZ=MST7MDT
export TZ
fi
This would appear to be the Mountain standard time... If I change this to TZ=EST-10EDT would this not change back to MST7MDT during a system reboot because the kernel parms have somehow got this Mountain paratmeter set? The /etc/TIMEZONE file is set to EST-10EDT.
Thanks for help and also thanks to Bill for your info also.

Maria.

Re: ENVironment Variable TZ

Michael Tully — Tue, 11 Jun 2002 00:55:43 GMT

Hi Maria,

Making that change will not change back during a system reboot. Unfortunately the 'MST' time is one that comes with the system. If the TZ is not fixed properly during a system installation, problems like this can occur.
The '/usr/lib/tztab' should not be changed unless there is a change to the dates designated by Bob Carr and his merry men. Let me know if you need further help.

Cheers
Michael

Re: ENVironment Variable TZ

Peter Gillis — Tue, 11 Jun 2002 01:28:22 GMT

Michael,
Thankyou for all your info and patience. Info from here has been invaluable.

Thanks.
Maria.