The tag has no wiki summary.

learn more… | top users | synonyms

5
votes
2answers
3k views

How can I tell if my Mac is keeping the clock updated properly?

I would like to know what the default settings for OS X are in terms of keeping the clock adjusted when I enable automatic time sync in the Date & Time preference. I do know that the venerable ...
16
votes
6answers
10k views

How can I keep my system clock in sync under Mavericks?

I have a mid 2011 27" iMac running Mavericks (10.9.1). I updated from Mountain Lion this Fall when Mavericks was released. I never had any problem before with my system clock. Since installing ...
10
votes
5answers
8k views

ntpd not updating time

I had updated my old iMac to Mavericks just fine. I then bought a new (certified refurbished, actually) iMac and migrated everything over from a Time Machine backup. The new iMac's clock loses ...
7
votes
2answers
2k views

Daily clock drift of several minutes

In the recent weeks I've noticed each morning that my clock would be behind by 2-3 minutes. I've noticed that opening the 'Date & Time' dialog from System Preferences will trigger the clock to ...
3
votes
1answer
3k views

Clock won't keep time after Mavericks installation

My clock no longer keeps time properly after installation of Mavericks. This problem affects all of my iMacs immediately post-Mavericks, so it's not an issue with a bad battery. The symptom is: The ...
1
vote
2answers
2k views

ntpd: consistently incorrect time on mid-2013 MacBook Air

I'm using ICMP time stamping on my mid-2013 MacBook Air, and I need my clock to have an accuracy of no worse than 1ms. I see that ntpd is running, with the default settings, and /etc/ntp.conf ...