OK, here is the chain of events 1. Woke up Sunday Oct. 29, the day at which summer time is switched to normal time in Europe (at 03:00). Computer has been switched off since the evening before.
2. Switch on computer at about 09:30 local time. 3. Expected clock applet to show time 09:30, instead it showed time 02:30 which is 7 hours behind the correct time. That's all. Then I manually adjusted the time to correct time from the System > Administration > Time and Date dialog and now it is working fine. I don't know to what extent time was screwed up in the computer as a whole, but I suspect it was only the clock applet that showed wrong time. As said before the computer clock has been synchronized to the two servers ntp.ubuntu.com 127.127.1.0 since installation of Ubuntu 6.10 on Thursday October 26. -- Clock applet updated time wrong when switching from summer time to normal time https://launchpad.net/bugs/69008 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs