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тАО10-01-2007 08:12 PM
тАО10-01-2007 08:12 PM
DST 2007 fallback
After successful fallover DST 2007 change on March 11, 2007. Now it is time for fallback on November 04.
Is any new special instructions,patch available for this fallback.
We have PHCO_36097 tztab patch present on our HP-UX 11i v1.
Thanks
Abhijeet
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тАО10-01-2007 08:30 PM
тАО10-01-2007 08:30 PM
Re: DST 2007 fallback
According to the origional patch it includes both the Spring and the Fall changes.
Also, PHCO_36097 has ben superseded by PHCO_37053, but you shouldn't need it unless you ar eon New Zealand time
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тАО10-01-2007 08:49 PM
тАО10-01-2007 08:49 PM
Re: DST 2007 fallback
You seem current on patching. If your government has not made any changes since you last patched, you should be fine.
SEP
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
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тАО10-02-2007 04:11 AM
тАО10-02-2007 04:11 AM
Re: DST 2007 fallback
the latest patch is PHCO_37053 for New Zealand timezone
( SR:8606494752 CR:JAGag46685 )
Daylight Saving time NZDT for New Zealand time zone
NZDT-12NZDT ceases one hour earlier than expected.
HP DST info
http://h10072.www1.hp.com/dst/
WK
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тАО10-02-2007 04:26 AM
тАО10-02-2007 04:26 AM
Re: DST 2007 fallback
Use it like this:
dst.pl -n
to display the exact seconds before and after the next time transition for the current TZ setting.
Invoke as dst.pl -u for full usage.
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тАО10-02-2007 05:03 AM
тАО10-02-2007 05:03 AM
Re: DST 2007 fallback
The dst.pl script that Clay posted works great:
# dst.pl
Sun Mar 11 01:59:59 MST 2007 --> Sun Mar 11 03:00:00 MDT 2007
Sun Nov 04 01:59:59 MDT 2007 --> Sun Nov 04 01:00:00 MST 2007
Rgds...Geoff
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тАО10-16-2007 03:40 AM
тАО10-16-2007 03:40 AM
Re: DST 2007 fallback
I ran the above script in all our servers and got the below output.
Sun Mar 11 01:59:59 EST 2007 --> Sun Mar 11 03:00:00 EDT 2007
Sun Nov 04 01:59:59 EDT 2007 --> Sun Nov 04 01:00:00 EST 2007
Is it means no need to take any manual action for the DST happening on 4th november? all our servers located in USA & Canada.
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тАО10-16-2007 04:14 AM
тАО10-16-2007 04:14 AM
Re: DST 2007 fallback
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тАО10-16-2007 09:20 AM
тАО10-16-2007 09:20 AM
Re: DST 2007 fallback
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тАО10-16-2007 09:59 AM
тАО10-16-2007 09:59 AM
Re: DST 2007 fallback
The problem with this approach is that you chose an ambiguous time. 4-Nov-2007 01:59:00 AM could be either Standard or Daylight Saving Time. Had you set the time to 00:59:00 then that would not have been an ambiguous time although you would have had to wait an hour. The problem with setting the system time ahead is that you also have to set the time back and that can cause all kinds of problems with timestamp sensitive data such as databases and makefiles. Use the Perl script, it is a much safer and completely reliable test as it doesn't actually change the system time, it jut sends the epoch seconds to the standard routines and displays the results.