[LEAPSECS] google abandons NTP ?

[Tony Finch]

On 26 Nov 2012, at 17:48, Steve Allen <sla at ucolick.org> wrote:

> 

> And google, beware, for at the picosecond level there is not a single

> time across the surface of earth.


Are you referring to gravitational effects? Google's atomic clocks are disciplined to match the rate of GPS time so differences between the geoid and the surface will be cancelled out. Either way, I don't think that comment is relevant because picoseconds are a few orders of magnitude below Google's precision requirements.

Tony.
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