Daylight Saving Time (DST)
Hi,
To Support U.S Daylight Saving TIme, I have updated my Solaris server
(SunOS 5.8 Generic_108528-29 sun4u sparc SUNW,Sun-Blade-100)
with the following patches :
(1)109809-03
(2)108993-62
After this O.S patch upgradation, I found that on March 11, 01:59 AM 2007 the time goes ahead to March 11, 03:00 AM 2007 as expected.
But Fall back is not happening.
The expected behavior is, if the system date is Nov 04, 01:59 AM 2007 then time has to fall back to Nov 04, 01:00 AM 2007.
In my case the time goes to Nov 11, 02:00 AM 2007.
Do I need to install any other patches ?
How to achive the fallback of DST ?
Thanks in Advance
T.Ramkumar
[722 byte] By [
tram] at [2007-11-26 11:22:24]
# 3
> After this O.S patch upgradation, I found that on
> March 11, 01:59 AM 2007 the time goes ahead to March
> 11, 03:00 AM 2007 as expected.
>
> But Fall back is not happening.
> The expected behavior is, if the system date is Nov
> 04, 01:59 AM 2007 then time has to fall back to Nov
> 04, 01:00 AM 2007.
> In my case the time goes to Nov 11, 02:00 AM 2007.
Please show how you are testing this. I imagine you are looking at the second 1:59am.
--
Darren
# 4
> What if you wait another minute?
>
> This job is performed by a command called 'rtc' which
> is run from cron:
> 1 2 * * * [ -x /usr/sbin/rtc ] && /usr/sbin/rtc -c >
> /dev/null 2>&1
Not at all. Timezone settings are handled by library calls and no processes (from cron or otherwise) are involved.
All the rtc program does is reset the hardware clock to reflect possible timezone changes on x86 hardware. The program doesn't even exist on SPARC. This is because the SPARC clock ticks in UTC and isn't affected by timezone or DST transitions. Whereas most x86 clocks tick in local time for compatibility with windows. (You can change that if you only boot to UNIX operating systems).
--
Darren
# 5
Hi All,
thanks for the response.
Darren I refered your previous posting and got the answer from the following link.
http://forum.sun.com/jive/thread.jspa?threadID=107416&tstart=90
Thanks for the quick response.
I tested with date -u and found that fallback from 1:59 am to 1:00 am happens.
T.Ramkumar
tram at 2007-7-7 3:37:45 >
