Leapsecond Eve 2016

December 31st 2016 · 1 min read · leap second, leapsecond, skew
By Victor Yodaiken

Around 2PM UTC, Google’s time starts to veer off in preparation for the leap second. Everyone else is reasonably solid. The base time here is provided by GPS.


Time sources being monitored in parallel include several NIST sources, the Canadian time source (, Google, Apple, USNO, GPS and a local PTP source.