Network Time Protocol

2016 Leap Second

Since we started adding Leap Seconds in 1972, there have been 26 of them - with the 27th to follow at 11:59:59 p.m. UTC (6:59:59 p.m. ET) on Dec. 31, 2016. The most recent addition occurred on June 30, 2015, which was the first since 2012 and the second since 2008. None were added from 1999-2004, but one was added every year with only five exceptions from 1973-95. 

Accurate Time Stamping for Video Surveillance

Through the use of a Stratum 1 NTP server, it is possible to produce surveillance videos with timestamps legally-traceable to UTC. This solution is far more cost-effective and accurate than others, and has quickly become the preferred option for video surveillance applications.

A GPS NTP server synchronizes to precise time from GPS satellites and operates securely behind a firewall to synchronize all elements of a system, down to the millisecond. Indeed, such servers typically have a margin of error of just plus or minus two milliseconds, which is more than accurate enough for successfully defending time-stamped evidence in a court of law.