Re: [time-nuts] Loran-C & French Clocks

Tue, 17 Mar 2009 06:06:15 -0700 


On 3/17/09 5:58 AM, "Arnold Tibus" <[email protected]> wrote:

> Interesting facts:
> The GPS navigation system has GPS Time as its basis. Galileo
> will have TAI as its basis. GLONASS has UTC as its basis,
> Air traffic controllers are using UTC.
> 

The latter is probably because air traffic control is basically done at a
resolution of 1 minute (e.g. "Hold at SADLE intersection, expect release at
32[minutes after the hour]") so the several second offset between UTC and
GPS is immaterial.  You're looking at a mechanical watch in any case.

Jim


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