Clock drift on Windows

Question

I\'ve developed a Windows service which tracks business events. It uses the Windows clock to timestamp events. However, the underlying clock can drift quite dramatically (e.

Answer 1

Since it sounds like you have a big business:

Take an old laptop or something which isn't good for much, but seems to have a more or less reliable clock, and call it the Timekeeper. The Timekeeper's only job is to, once every (say) 2 minutes, send a message to the servers telling the time. Instead of using the Windows clock for their timestamps, the servers will put down the time from the Timekeeper's last signal, plus the elapsed time since the signal. Check the Timekeeper's clock by your wristwatch once or twice a week. This should suffice.