NTP Reference

This page is a quick reference for NTP (Network Time Protocol). You can find more detailed information at the NTP Pool Project and the Network Time Project.

If you are troubleshooting or testing time within a Microsoft network I highly recommend Greyware’s Windows Time Agent. All the power in a great GUI.

Here is a of NTP servers that I use frequently.

Stratum 1 Servers

• tick.uh.edu
• tock.usno.navy.mil
• tick.usno.navy.mil
• ntp0.broad.mit.edu
• time.windows.com

US Pool Servers

• 0.us.pool.ntp.org
• 1.us.pool.ntp.org
• 2.us.pool.ntp.org
• 3.us.pool.ntp.org