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#307359 - 17/02/2008 05:25 MacBook / MacBook Pro: system clock loosing time?
RandallFarr
new poster

Registered: 12/03/2002
Posts: 33
I bought a new MacBook 2.2GHz last week and have noticed in the system log that the NTPD (network time protocol daemon) is adjusting the clock about 3 times per hour. I have not noticed this behavior on my iMac, nor my (home theater)macMini. Here's an example of what I'm seeing:

2/16/08 9:51:22 PM ntpd[13] time reset +0.485430 s
2/16/08 10:15:50 PM ntpd[13] time reset +0.530196 s
2/16/08 10:35:08 PM ntpd[13] time reset +0.485360 s
2/16/08 10:55:10 PM ntpd[13] time reset +0.546441 s
2/16/08 11:16:50 PM ntpd[13] time reset +0.516380 s
2/16/08 11:44:50 PM ntpd[13] time reset +0.632714 s
2/17/08 12:07:01 AM ntpd[13] time reset +0.484723 s
2/17/08 12:27:30 AM ntpd[13] time reset +0.481069 s
2/17/08 12:48:39 AM ntpd[13] time reset +0.455014 s
2/17/08 1:02:54 AM ntpd[13] time reset +0.498921 s
2/17/08 1:26:43 AM ntpd[13] time reset +0.597541 s
2/17/08 1:45:18 AM ntpd[13] time reset +0.433822 s
2/17/08 2:01:42 AM ntpd[13] time reset +0.477892 s

So I'm wondering if anyone else out there with either a MacBook or a MacBook Pro is seeing anything similar going on with their system? I'm still running 10.5.1, btw.

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#307362 - 17/02/2008 07:38 Re: MacBook / MacBook Pro: system clock loosing time? [Re: RandallFarr]
andy
carpal tunnel

Registered: 10/06/1999
Posts: 5914
Loc: Wivenhoe, Essex, UK
If I remember rightly I spotted someone in a comment on Slashdot complaining about the same thing, though I think they were on 10.5.2
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#307369 - 17/02/2008 13:23 Re: MacBook / MacBook Pro: system clock loosing time? [Re: RandallFarr]
Dignan
carpal tunnel

Registered: 08/03/2000
Posts: 12318
Loc: Sterling, VA
Actually, my Airport Extreme even does that. I thought it was pretty funny that it could lose about 45 seconds in a day.
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Matt

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#307377 - 17/02/2008 18:15 Re: MacBook / MacBook Pro: system clock loosing time? [Re: RandallFarr]
wfaulk
carpal tunnel

Registered: 25/12/2000
Posts: 16706
Loc: Raleigh, NC US
Assuming you saw these in /var/log/system.log, I don't have them on my MBPro 2.4GHz.
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Bitt Faulk

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#307378 - 17/02/2008 18:27 Re: MacBook / MacBook Pro: system clock loosing time? [Re: wfaulk]
drakino
carpal tunnel

Registered: 08/06/1999
Posts: 7868
I had to check the archived logs, looks like my MBPro witn 10.5.2 adjusts about once a day, never more then about a quarter of a second.

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#307390 - 17/02/2008 21:11 Re: MacBook / MacBook Pro: system clock loosing time? [Re: drakino]
Dignan
carpal tunnel

Registered: 08/03/2000
Posts: 12318
Loc: Sterling, VA
Actually, I was mistaken - my Airport Extreme's clock is fast smile The log shows this:
Code:
Feb 14 19:54:47	5	Clock synchronized to network time server time.apple.com (adjusted +0 seconds).
Feb 14 20:54:47	5	Clock synchronized to network time server time.apple.com (adjusted +0 seconds).
Feb 14 21:54:48	5	Clock synchronized to network time server time.apple.com (adjusted -1 seconds).
Feb 14 22:54:49	5	Clock synchronized to network time server time.apple.com (adjusted -2 seconds).
Feb 14 23:54:49	5	Clock synchronized to network time server time.apple.com (adjusted +0 seconds).
Feb 15 00:54:50	5	Clock synchronized to network time server time.apple.com (adjusted +0 seconds).
Feb 15 01:54:50	5	Clock synchronized to network time server time.apple.com (adjusted +0 seconds).
Feb 15 02:54:51	5	Clock synchronized to network time server time.apple.com (adjusted -1 seconds).
Feb 15 03:54:51	5	Clock synchronized to network time server time.apple.com (adjusted +0 seconds).
Feb 15 04:54:52	5	Clock synchronized to network time server time.apple.com (adjusted +0 seconds).
Feb 15 05:54:52	5	Clock synchronized to network time server time.apple.com (adjusted +0 seconds).
Feb 15 06:54:53	5	Clock synchronized to network time server time.apple.com (adjusted -1 seconds).
Feb 15 07:54:53	5	Clock synchronized to network time server time.apple.com (adjusted +0 seconds).
Feb 15 08:54:53	5	Clock synchronized to network time server time.apple.com (adjusted +0 seconds).
Feb 15 09:54:54	5	Clock synchronized to network time server time.apple.com (adjusted +0 seconds).
Feb 15 10:54:54	5	Clock synchronized to network time server time.apple.com (adjusted +0 seconds).
Feb 15 11:54:55	5	Clock synchronized to network time server time.apple.com (adjusted -1 seconds).
Feb 15 12:54:55	5	Clock synchronized to network time server time.apple.com (adjusted +0 seconds).
Feb 15 13:54:56	5	Clock synchronized to network time server time.apple.com (adjusted +0 seconds).
Feb 15 14:54:56	5	Clock synchronized to network time server time.apple.com (adjusted +0 seconds).
Feb 15 15:54:57	5	Clock synchronized to network time server time.apple.com (adjusted -1 seconds).
Feb 15 16:54:58	5	Clock synchronized to network time server time.apple.com (adjusted -1 seconds).
Feb 15 17:54:58	5	Clock synchronized to network time server time.apple.com (adjusted +0 seconds).
Feb 15 18:54:58	5	Clock synchronized to network time server time.apple.com (adjusted +0 seconds).
Feb 15 19:54:59	5	Clock synchronized to network time server time.apple.com (adjusted -1 seconds).
Feb 15 20:54:59	5	Clock synchronized to network time server time.apple.com (adjusted +0 seconds).
Feb 15 21:55:02	5	Clock synchronized to network time server time.apple.com (adjusted -1 seconds).
Feb 15 22:55:02	5	Clock synchronized to network time server time.apple.com (adjusted +0 seconds).
Feb 15 23:55:04	5	Clock synchronized to network time server time.apple.com (adjusted -1 seconds).
Feb 16 00:55:04	5	Clock synchronized to network time server time.apple.com (adjusted +0 seconds).
Feb 16 01:55:06	5	Clock synchronized to network time server time.apple.com (adjusted -2 seconds).
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Matt

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