Computer Time Services

  USNO Network Time Protocol (NTP) SERVERS
  Network Time Protocol Software
    Compiled by Dr. David L. Mills, University of Delaware
  Modem Time Service
  USNO Voice Time Announcer

Because of the high volume of traffic, USNO cannot provide personal assistance with network time synchronization. Department of Defense agencies and contractors should contact

Top | The USNO Master Clock | What Time Is It? | GPS and Other Timing Operations | Automated Data Service | Computer Time Services | Two-Way Satellite Time Transfer | PTTI Meeting |

Staff Phone Numbers