If you don't already have it, download and install Atomic Clock Sync 2.7.0.3 then run it. The values that were changed will show as follows (or according to your Time Zone):
If the new values didn't take effect immediately, open your clock, change your Time Zone to something else and click [apply], then change it back and click [apply], then [ok]. Exit Atomic Clock and restart it, the new settings should now be in effect.
Press Ping Now to set your clock to the actual exact time. If the server doesn't respond, select a different server in File -> Time Servers.
Courtesy of: Lightspeed's
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