Draconian vacation policies for US slave workers
in [Europe]
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From: JohnT on 13 Aug 2006 16:57 "Mxsmanic" <mxsmanic(a)gmail.com> wrote in message news:904vd25hlagkgu1q1tjmglcttr7p5dcki0(a)4ax.com... > Jim Ley writes: > >> Interesting claim you're making, and one which has little basis in >> fact, it will of course depend on what technology your mobile phone is >> operating on, as certain formats rely on very accurate clocks and send >> the exact time to the phone, they're likely a lot more accurate than >> your watch. > > My watch is accurate to 1 second in three million years. No cellphone > does better than that. You would only be able to verify that claim if you measured the time errors over 3 million years. Not even you could do that. JohnT
From: Jim Ley on 13 Aug 2006 17:07 On Sun, 13 Aug 2006 22:47:58 +0200, Mxsmanic <mxsmanic(a)gmail.com> wrote: >Jim Ley writes: > >> You're assuming the inconvenience was the getting it out of the >> pocket, rather than the remembering to carry, transfer between >> clothes, risk of losing etc. > >No. Pocket watches were often attached to a chain that could in turn >be attached to clothing, precisely for the purpose of preventing what >you describe. How does a chain make you remember to transfer it between clothes, or remember to have it with you? Jim.
From: Jim Ley on 13 Aug 2006 17:09 On Sun, 13 Aug 2006 22:49:05 +0200, Mxsmanic <mxsmanic(a)gmail.com> wrote: >Jim Ley writes: > >> Interesting claim you're making, and one which has little basis in >> fact, it will of course depend on what technology your mobile phone is >> operating on, as certain formats rely on very accurate clocks and send >> the exact time to the phone, they're likely a lot more accurate than >> your watch. > >My watch is accurate to 1 second in three million years. No cellphone >does better than that. How do you update it for leap-seconds? >In fact, I wasn't aware of any cellphones that do anything to keep >accurate time. Which ones have such a feature? 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. Jim.
From: Jim Ley on 13 Aug 2006 17:16 On Sun, 13 Aug 2006 22:51:39 +0200, Mxsmanic <mxsmanic(a)gmail.com> wrote: >Miguel Cruz writes: > >> In some places (e.g., USA) the time on the phone is set by the network >> and I must assume that's very precise. > >It depends on the network; they don't necessarily set their clocks >carefully, although the smart ones do. If they didn't set them accurately (well if they didn't set them all to be the same to a reference clock, the only available reference clock being the GPS clock system) then their network would stop working, accurate clocks are essential for the protocols. >Yes. I want it to be perpetually correct within a fraction of a >second. Why? For what purpose? Jim.
From: Jim Ley on 13 Aug 2006 17:16
On Sun, 13 Aug 2006 22:52:04 +0200, Mxsmanic <mxsmanic(a)gmail.com> wrote: >mrtravel writes: > >> A lot of them are time synced. My phone changes timezones when turned on >> after arriving in a new timezone. > >To what source are they synced? GPS Atomic clocks Jim. |