[time-nuts] UTC and the speed of light?

[mike cook]

Le 30/08/2011 10:36, Rob Kimberley a écrit :
> AFIK it isn't.
>
> Rob K
>
> -----Original Message-----
> From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
> Behalf Of Chris Albertson
> Sent: 30 August 2011 8:40 AM
> To: Discussion of precise time and frequency measurement
> Subject: [time-nuts] UTC and the speed of light?
>
> How is the speed of light accounted for in the definition of UTC?
>
> In other words, how did they solve the conflict where on one hand we'd all
> expect two "perfect" clocks to "tick" at the same time but wether they do
> depends on the location of the observer?
No, but the position of the clocks used to measure TAI on which UTC is 
based is taken  into account with the definition of TAI.

"TAI is a coordinate time scale defined in a geocentric reference frame 
with the SI second as realized on the rotating geoid as the scale unit"