Bug 139081

Summary: clock wrong after daylight saving time
Product: [openSUSE] SUSE LINUX 10.0 Reporter: Thorsten Staerk <suse>
Component: OtherAssignee: Dr. Werner Fink <werner>
Status: RESOLVED WORKSFORME QA Contact: E-mail List <qa-bugs>
Severity: Normal    
Priority: P5 - None    
Version: Final   
Target Milestone: ---   
Hardware: LittleEndian   
OS: SuSE Linux 10.0   
Whiteboard:
Found By: Other Services Priority:
Business Priority: Blocker: ---
Marketing QA Status: --- IT Deployment: ---
Attachments: as discussed
as discussed

Description Thorsten Staerk 2005-12-14 21:11:40 UTC 
After I set my clock to daylight saving time, it terribly goes wrong and this stupid /etc/adjtime is again there. 
I am scared for beginners with Linux - it took me years to find out /etc/adjtime is the file disturbing my clock.
Comment 1 Michael Gross 2005-12-15 13:18:12 UTC 
Hello

This problem is `known'. But please provide some more information. Attach the file  /etc/sysconfig/clock as well as the content of /etc/adjtime.
Comment 2 Michael Gross 2005-12-16 17:29:23 UTC 
Please also check if the timezone set in the BIOS of your system is the same as specified in /etc/sysconfig/clock - the problem is likely caused by this.
Comment 3 Thorsten Staerk 2005-12-17 20:41:03 UTC 
I do what you say - however I am trying here to help you (even more) improve your distro - I can quite easily get this right by deleting /etc/adjtime.
Comment 4 Thorsten Staerk 2005-12-17 20:41:41 UTC 
There is no BIOS timezone setting in my system.
Comment 5 Thorsten Staerk 2005-12-17 20:42:31 UTC 
Created attachment 61325 [details]
as discussed
Comment 6 Thorsten Staerk 2005-12-17 20:44:04 UTC 
Created attachment 61326 [details]
as discussed
Comment 7 Michael Gross 2005-12-19 17:32:40 UTC 
Werner: The clock is set to localtime. Please comment about this.
Comment 8 Dr. Werner Fink 2005-12-19 17:47:40 UTC 
From where do you know this?  I'd like to know which time
in the CMOS is set before linux or any other OS is booted.
Then ... _after that_ ... I'd like to know the settings in
/etc/sysconfig/clock to see which is the assumption on the
CMOS clock and the timezone of the system time.  Also the
lines found in /etc/adjtime I'd like to see.

Then we will see if the configuration, the file adjtime
and the CMOS time are consistent.
Comment 9 Dr. Werner Fink 2005-12-20 16:14:11 UTC 
Btw: Which time was set to daylight saving time?  The system time
is set automatically to daylight saving time and back depending
on the rules for the choosen timezone.  And at reboot/shutdown
this will be done automatically to the CMOS clock.

The only problem which may occur are missed timer interrupts
of the system time.  This makes the system clock much more
worse on some mainboards or notebooks than the CMOS time.