I have 4 PCs running 10.10 and they all are configured with the same time servers. However, one of them was 6 minutes wrong and it obviously wasn't getting its time synchronized via the defined servers. I tried changing a few of those, but nothing short of a reboot would get its clock set properly. Any ideas what the problem may be?
Is there firewall preventing UDP traffic?
Also, NTP typically corrects time very slowly. You can try stopping your ntpd and run something like
And see what it outputs. If it's something like
then it fixed that offset successfully. After starting ntpd again should keep your clock synchronized.