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US Mountain Time Zone ntp servers

tick.usnogps.navy.mil
Location: US Naval Observatory Alternate Master Clock, Colorado Springs, CO
Synchronization: NTP V4 primary (USNO Master Clock H-masers)
Access Policy: Open access for MIL, GOV, and stratum 2 servers, others by arrangement
 
tock.usnogps.navy.mil
Location: US Naval Observatory Alternate Master Clock, Colorado Springs, CO
Synchronization: NTP V4 primary (USNO Master Clock H-masers)
Access Policy: Open access for MIL, GOV, and stratum 2 servers, others by arrangement

 
Commander, Naval Meteorology and Oceanography Command | 1100 Balch Blvd. | Stennis Space Center, Mississippi 39529