On Mon, 14 Aug 2006 00:28:06 +0200, Mxsmanic
wrote:

Jim Ley writes:

How do you update it for leap-seconds?

The radio signals to which it synchronizes cover leap years, leap
seconds, and daylight saving time. No manual adjustment is ever
necessary.

In any case, your watch is not accurate to what you claimed, as there
is more inaccuracy in the radio tranmission than your quoted figure,
there is also reportedly more accuracy with a GPS system.

So a GPS connection would be more reliable, so a CDMA phone would be
more accurate.

It's not a function of the phone, it's a function of the network -
anything that is CDMA based or the majority of the 3G methods (AIUI)
have clocks synchronised with the base-station, which are GPS sync'd.

Which _can_ be GPS synchronized.

No all CDMA systems are, there's no other available clocks.


GSM (the standard used everywhere else in the world) provides for time
synchronization,

Oops, have you not heard of 3G roll outs, GSM is not as ubiquitous as
it was - although they roll over to it obviously.

Jim.