[TheGrumpyBrit]

In the absense of a published and agreed standard, every approach is unilateral. My company is taking a similar approach - disconnecting from external NTP servers on 31st December, stepping the change in gradually, and reconnecting when we're "right" again.

Google have never been in the NTP business - there's no reason for them to have worked towards a concensus on this. But when a company their size makes their approach publicly available to all, it starts to pave the way for a consistent standard for everyone.

[toast0]

Google is in the NTP business. Chromebooks sync time from their servers, android devices can (but also from carrier provide time signals), and for hosts in their cloud services.