Posted by: RandallFarr
MacBook / MacBook Pro: system clock loosing time? - 17/02/2008 05:25
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.
Posted by: andy
Re: MacBook / MacBook Pro: system clock loosing time? - 17/02/2008 07:38
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
Posted by: Dignan
Re: MacBook / MacBook Pro: system clock loosing time? - 17/02/2008 13:23
Actually, my Airport Extreme even does that. I thought it was pretty funny that it could lose about 45 seconds in a day.
Posted by: wfaulk
Re: MacBook / MacBook Pro: system clock loosing time? - 17/02/2008 18:15
Assuming you saw these in /var/log/system.log, I don't have them on my MBPro 2.4GHz.
Posted by: drakino
Re: MacBook / MacBook Pro: system clock loosing time? - 17/02/2008 18:27
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.
Posted by: Dignan
Re: MacBook / MacBook Pro: system clock loosing time? - 17/02/2008 21:11
Actually, I was mistaken - my Airport Extreme's clock is fast
The log shows this:
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).