Daylight activity

[Madhu_17]

Hello Friends,

We are supporting one HP server of belgium. How to go with the daylight savings for this server.

Pls find the date command outpur for your ref.

#date
Mon Oct 24 16:37:24 METDST 2005

#cat TIMEZONE
TZ=MET-1METDST
export TZ


Thanks..

[Arunvijai_4]

http://forums1.itrc.hp.com/service/forums/bizsupport/questionanswer.do?threadId=967582

This should be helpful..

-Arun

[Madhu_17]

As I am not that much confident on HP-UX,
Can anybody give me step-by-step commands


Thanks in advance..

[Orhan Biyiklioglu · Accepted solution]

Your timezone setup seems correct. If your tztab file contains the information for the MET timezone like the following:

#grep MET /usr/lib/tztab
MET-1METDST
0 3 25-31 3 1983-2038 0 METDST-2
0 2 24-30 9 1983-1995 0 MET-1
0 2 25-31 10 1996-2038 0 MET-1

Your timezone will be automatically changed from METDST to MET on October 30th.

hth

[Madhu_17]

Yes.. my tztab file is having entries as specified by you for "-1METDST".

Hope my server will get effected automatically.. Pls confirm..


Thanks

[James R. Ferguson]

Hi Madhu:

Your timezone involves a daylight savings change. If you look at the manpages for 'tztab' and match your timezone to the stanza in '/usr/lib/tztab' you can see exactly when your time change will occur.

# man tztab
# cat /usr/lib/tztab

Regards!

...JRF...

[James R. Ferguson]

Hi Madhu:

Your server will behave quite fine. You can find some additional information regarding daylight savings time changes and 'cron' in the manpages for 'cron'.

Regards!

...JRF...

[Pete Randall]

You have to remember that the actual time does not change, just the way it is displayed. With your tztab entries, it will revert to standard time automatically.


Pete

[Madhu_17]

Thanks James..

Pete, your reply is little bit confusing to me.. what happens on 30 th oct at 3 AM??

Will my date command shows 3 AM after that or 2 AM??

Thanks

[Hanwant Verma_1]

Check this thread

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=967177

Hanwant

[Pete Randall]

See the section titled "Spring and Autumn Time Transitions" in the cron man page to see how jobs are affected by the time shift.


Pete

[Orhan Biyiklioglu]

Your date command output will change from 02:59 to 02:00.

[Madhu_17]

Thanks all..

So, i do not need to do any thing on that day.. simply if i check it would be okay.. correct me if i am wrong..


Thanks

[Pete Randall]

No, you don't have to do anything.


Pete

[Hanwant Verma_1]

No points assigned.

Hanwant

[Madhu_17]

Thanks all for your valuable suggestions.