Problems with Cisco Clock and Timestamps

Posted on 2007-04-03
Last Modified: 2008-09-17
I've become extremely annoyed with the cisco clock and timestamps on my devices.

My clock shows one time when I do a "show clock":

.11:13:58.809 EDT Tue Apr 3 2007

Then to verify my log timestamps are correct, I do a "clear counters" and issue a "show log".  My log shows another time on the timestamp:

.Apr  3 15:14:29: %CLEAR-5-COUNTERS: Clear counter on all interfaces by routeradmin on vty0 (172.X.X.X)


Here's the output from a "show clock detail"
.11:17:34.631 EDT Tue Apr 3 2007
Time source is NTP
Summer time starts 02:00:00 EST Sun Mar 11 2007
Summer time ends 02:00:00 EDT Sun Nov 4 2007


Here's the only config I have on the router, aside from my NTP servers
clock timezone EST -5
clock summer-time EDT recurring 2 Sun Mar 2:00 1 Sun Nov 2:00


Please note, the correct time is the one showing up under "shock clock" and the incorrect time is displaying under my logging and debugging timestamps.

Question by:ctrost
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Expert Comment

by:Don Johnston
ID: 18845763
From global config;

service timestamp logging datetime
service timestamp debug datetime


Author Comment

ID: 18845797
That's already in place...that's how I'm able to see the date and time on the logging timestamp I posted.  Sorry, should have mentioned that.
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Expert Comment

by:Don Johnston
ID: 18847321
As the difference is 4 hours, it appears to be GMT offset issue.
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Author Comment

ID: 18849850 how do I fix it?  My timezone was set properly with the "clock timezone EST -5" command....which is my proper timezone.  I'm in Indiana and we're on EST (US & Canada).  Obviously we're in EDT currently but I reflected that change with the cisco-provided summertime command...

Shock clock is showing up fine but show log and showing the wrong timestamps, makes no sense
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Accepted Solution

Don Johnston earned 250 total points
ID: 18850211
service timestamps logging datetime localtime


Author Comment

ID: 18850261
you da man don.  Thanks

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