dst change didn't take effect

[Richard Darling]

We are located in the EST. I editted the tztab file:
root:L1000>:pwd
/usr/lib

# Eastern Standard Time, Eastern Daylight Time
EST5EDT
0 3 24-30 4 1970-1973 0 EDT4
0 3 6 1 1974 0-6 EDT4
0 3 22-28 2 1975 0 EDT4
0 3 24-30 4 1976-1986 0 EDT4
0 3 1-7 4 1987-2006 0 EDT4
0 3 8-14 3 2007-2038 0 EDT4
0 1 25-31 10 1970-1973 0 EST5
0 1 24-30 11 1974 0 EST5
0 1 25-31 10 1975-2007 0 EST5
0 1 1-7 11 2007-2038 0 EST5

Started and stopped cron:

root:L1000>:/sbin/init.d/cron stop
cron stopped
root:L1000>:/sbin/init.d/cron start
cron started

root:L1000>:date
Sun Mar 11 17:04:01 EST 2007

Still off by 1 hour and displaying EST.

Can anyone see anything that I'm missing?
Thanks.
RD

[Richard Darling]

root:L1000>:echo $TZ
EST5EDT

...in case anyone was going to ask em to check it...

RD

[Raj D.]

RD,

Which version of hp-ux you are using.? Do you have the DST patch installed?
hp-ux 11iv3 can support 2007 DST Change, rest all you need to update the DST patch.

For
hp-ux 11.00 --> PHCO_35991
hp-ux 11.11 --> PHCO_35989
hp-ux 11.23 --> PHCO_35990 or PHCO_34375
hp-ux 11iv3 --> PHCO_35992 (Min requirement)
(though 11iv3 supports 2007 DST change).

Cheers,
Raj.

[Raj D.]

You can run this to check:
# swlist -l product | grep -i tz

Cheers,
Raj.

[Dennis Handly]

>dst change didn't take effect. ... I edited the tztab file:

You edited it incorrectly. It is better if you install the proper patch, or copy the tztab file from a patch in a supported OS version.

In particular, you didn't change this entry correctly:
0 1 25-31 10 1975-2007 0 EST5

>Raj D. (though 11iv3 supports 2007 DST change).

I'm not sure it has the latest changes for Canada, these were done in the last few months.

[Pete Randall]

Richard,

By far the easiest way to ensure that the change is made correctly is to install the latest patch for your OS. From the ITRC patch database, it is a simple matter to select the OS, then search on "dst". Of course, if this happens to be a 10.20 system, then you're forced into some sort of manual change.

Here is the /usr/lib/tztab entry from a patched system - you might want to try cutting and pasting this into tztab:

# Eastern Standard Time, Eastern Daylight Time
EST5EDT
0 3 24-30 4 1970-1973 0 EDT4
0 3 6 1 1974 0-6 EDT4
0 3 22-28 2 1975 0 EDT4
0 3 24-30 4 1976-1986 0 EDT4
0 3 1-7 4 1987-2006 0 EDT4
0 3 8-14 3 2007-2038 0 EDT4
0 1 25-31 10 1970-1973 0 EST5
0 1 24-30 11 1974 0 EST5
0 1 25-31 10 1975-2006 0 EST5
0 1 1-7 11 2007-2038 0 EST5


Pete

[Eric Jacklin]

Yes, You missed below mention patch.
Update this patch in all the server.

PHCO_34342 (superseded by PHCO_34668)

[Ludovic Derlyn]

hi,

Just a precision, when you apply this patch , if tztab has been modified , patch didn't replace existing, but copy new tztab in /usr/lib/contrib/tztab

You must edit it and move to /usr/lib

Last remark, you must stop ansd restart all applications for initialise new tztab

In my cases, i have rebooted my servers by precaution.

Regards
L-DERLYN

[Jaime Bolanos Rojas.]

Richard,

You forgot to mention OS version, and why you were doing the changes manually instead of using the patch.

Regards,

Jaime.

[Richard Darling]

Version 11.0 - downloaded and applied the patch - all set. Thanks for all the replies.
RD