US Eastern Time Zone
Note, the first three NTP servers are part of an IP load-balanced farm. You should choose only ONE of these three Washington, DC servers.
Location: Time Service Dept., U.S. Naval Observatory, Washington, DC
Synchronization: NTP V4 primary (USNO Master Clock H-masers plus GPS)
Access Policy: open access for MIL, GOV, and other stratum 2 servers. Choose only one of tick/tock/ntp2.usno.navy.mil.
Location: Time Service Dept., U.S. Naval Observatory, Washington, DC
Synchronization: NTP V4 primary (USNO Master Clock H-masers)
Access Policy: open access for MIL, GOV, and other stratum 2 servers. Choose only one of tick/tock/ntp2.usno.navy.mil.
Location: Time Service Dept., U.S. Naval Observatory, Washington, DC
Synchronization: NTP V4 primary (USNO Master Clock H-masers)
Access Policy: open access for MIL, GOV, and other stratum 2 servers. Choose only one of tick/tock/ntp2.usno.navy.mil.
Location: University of Florida, Gainesville, FL
Synchronization: NTP V4 primary (TrueTime GPS-VME)
Access Policy: open access for stratum 2 servers and UFL clients,others by arrangement
Location: Colby College, Waterville, ME
Synchronization: NTP V4 primary (Brandywine Syncclock32/Oncore GPS)
Access Policy: open access for stratum 2 servers and Colby clients,others by arrangement
Location: OARnet, Ohio State University, Columbus, Ohio
Synchronization: NTP V4 primary (TrueTime GPS-VME)
Access Policy: open access for stratum 2 servers and OARnet, others by arrangement
Location: Columbia University, New York City
Synchronization: NTP V4 primary (TrueTime GPS-VME)
Access Policy: open access for stratum 2 servers and CU, others by arrangement
Location: Georgia Institute of Technology, Atlanta, Georgia
Synchronization: NTP V4 primary (Motorola Oncore UT+ GPS)
Access Policy: open access for stratum 2 servers and GATECH clients, others by arrangement
