Dear colleagues,
The power to the NIST Boulder site will be turned off for maintenance this weekend, and that may disrupt access to the time servers at that site (IP addresses 132.163.96.x). The systems at the other locations will not be affected.
The exact duration of the outage is uncertain, but it may last from early on Saturday morning, 18 May to late on Sunday afternoon, 19 May, Mountain time (UTC-6).
I apologize for the service failure.
Judah Levine