[ntp:questions] Re: ntpdate steps 86400 seconds

Tom Smith smith at cag.zko.hp.com
Sat Oct 1 13:49:19 UTC 2005


K.D.P wrote:
> I ran ntpdate -d time_server_ip (just before to just after midnight)
> additional to my original ntpdate -sB time_server_ip (every minute) in cron.
> Here is the result:
> 

reference time:    c6e84f87.00000000  Fri, Sep 30 2005 23:57:59.000
originate timestamp: c6e84f88.88fe6cfa  Fri, Sep 30 2005 23:58:00.535
transmit timestamp:  c6e84f88.897689ca  Fri, Sep 30 2005 23:58:00.536
offset -0.002518

Not OK:
reference time:    c6e9a144.00000000  Sat, Oct  1 2005 23:59:00.000
originate timestamp: c6e9a144.ea4521cf  Sat, Oct  1 2005 23:59:00.915
transmit timestamp:  c6e84fc4.e9487768  Fri, Sep 30 2005 23:59:00.911
offset 86400.001896

reference time:    c6e9a180.00000000  Sun, Oct  2 2005  0:00:00.000
originate timestamp: c6e9a181.3a12cadb  Sun, Oct  2 2005  0:00:01.226
transmit timestamp:  c6e85001.39a7f3cf  Sat, Oct  1 2005  0:00:01.225
offset 86400.000962

Both the originate and reference timestamps have skipped ahead by
24 hours 1 minute _before_ midnight.

Note also that the reference time only has a resolution
of 1 second.




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