When will AD member computers sync after DC time correction?

Question

Today I discovered that about 6 months ago, someone had reconfigured our PDC emulator to sync from non-existent time servers, causing it (and in effect everything else in AD) to be off by 37 seconds from the intended, reliable NTP server.  I corrected
it on the PDC emulator and made sure the other DCs got in sync with it.  (We have one domain, forest and site so that part was easy.)
Since I did that, many member computers are off from the DCs by 37 seconds, which is expected.  Many of them show Event ID 50 in the System Log: "The time service detected a time difference of greater than 5000 milliseconds for 900 seconds.......When
a valid time stamp is received from a time service provider, the time service will correct itself". 
I assume I don't have too much to worry about since it's well within the 5 minute difference allowed by Kerberos.  However, it's now been 5 hours since then time correction on the DCs and when I spot check clients, many are still off by 37 seconds.
When will these member computers correct their clocks WITHOUT INTERVENTION?  I'm wondering how they will find a "valid time stamp".
Thanks.

Answer 1

To for your client computers to synchronize now, you can write a script that will
w32tm /resync command remotely on them: http://social.technet.microsoft.com/Forums/windowsserver/en-US/2deee709-2840-49d6-8fd4-de14e860de7a/how-do-i-force-all-clients-in-domain-to-syncronize-time-now-remotely?forum=winservergen
Please also see that: http://www.pretentiousname.com/timesync/
To avoid similar situations in the future, I would recommend reading this Wiki article: http://social.technet.microsoft.com/wiki/contents/articles/18573.time-synchronization-in-active-directory-forests.aspx
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