DST Not On in Gutsy After Hibernate in Eastern N. America Time Zone on March 9, 2008

[Oh01]

Binary package hint: tzdata

I live in the Eastern Time Zone in North America. I had set the computer to Hibernate on March 8, 2008. But after resuming from hibernation on March 9, 2008 in the evening, the system was still on Eastern Standard Time (EST). It did not change automatically to Eastern Daylight Time (EDT). IMHO, it should have done an automatic change to EDT after waking up, checking the date (March 9, 2008) and time (after 2:00 AM) -- or it should have at least asked me about it.

I have a fully-updated Gutsy 7.10 installation, including all the suggested Time Zone software updates.

The Clock Applet on top Gnome panel had been set to Configuration: Keep Synchronized with Internet servers > Select Servers: time.nrc.ca (Canada) and ntp.ubuntu.com

I had to do a manual Synchronize with Time Servers using Clock Applet on top Gnome panel > Adjust Date & Time > Configuration: Manual > Synchronize Now. This fixed the problem.

I then returned the settings to Clock Applet on top Gnome panel had been set to Configuration: Keep Synchronized with Internet servers > Select Servers: time.nrc.ca (Canada) and ntp.ubuntu.com

[Oh01 (ydzregistrations)]

I should have also mentioned:

Ever since the original installation (Feisty, later upgraded to Gutsy), I have had the Time zone set to America/Toronto. This is what is also shown in Clock Applet on top Gnome panel > Adjust Date & Time.

Synaptic shows that the version of tzdata that I have installed is the latest available, i.e.: 2007k-0ubuntu0.7.10.1

[Oh01 (ydzregistrations)]

This morning, I experimented with hwclock, based on the suggestions by Mary Gardiner at https://bugs.launchpad.net/ubuntu/+source/tzdata/+bug/91418/comments/11

My results show that changing the time in the Gnome Clock applet (see above) does not change the system (hardware) time. Oddly, though, despite the system time being off by an hour, it still thought that DST was on. I have a Dell Dimension 4700. Are there any hardware issues that could be causing this? (Please excuse the beginner-level question.) In the meantime, here is my hwclock output from this morning:

$ hwclock --show

Mon 10 Mar 2008 08:24:54 AM EDT -0.018252 seconds

sudo hwclock --systohc

hwclock --show

Mon 10 Mar 2008 09:25:21 AM EDT -0.001562 seconds

[Martin Pitt (pitti)]

Oh01 [2008-03-11 4:07 -0000]:
> My results show that changing the time in the Gnome Clock applet (see
> above) does not change the system (hardware) time.

Please note that the hardware clock is only set to the system clock
when you shutdown the machine, not immediately when you change the
time on your computer. That might be the source of your confusion?

(See /etc/init.d/hwclock.sh)

[era (era)]

How about set it when suspending or hibernating also. "Who knows where you'll wake up"!

[era (era)]

To expand a bit on that, I've noticed that when I'm at home, and get NTP, my clock is correctly set to DST for my time zone, but when I lose the network, it flips back by an hour. That's really aggravating; I've almost missed a meeting a few times because of that.

[era (era)]

Added "Affects: ntp"; to reiterate, my suggestion would be for NTP to add a hook to update the hardware clock when you suspend or sleep, or maybe in the network hooks, when you lose connection to the NTP server.

[era (era)]

Oh and I'm on Gutsy still; Toshiba Libretto U105 laptop.

[Chuck Short (zulcss)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. The issue that you reported is one that should be reproducible with the live environment of the Desktop CD of the development release - Karmic Koala. It would help us greatly if you could test with it so we can work on getting it fixed in the next release of Ubuntu. You can find out more about the development release at http://www.ubuntu.com/testing/. Thanks again and we appreciate your help.

[Chuck Short (zulcss)]

We'd like to figure out what's causing this bug for you, but we haven't heard back from you in a while. Could you please provide the requested information? Thanks!

[Dave Walker (davewalker)]

Marking Invalid due to lack of response.

Thanks.