On Nov 11, 2011, at 1:25 AM, Frank@reednavigation.com wrote: > By the way, even without an app, the system time on Android phones is reliably between 13 and 15 seconds ahead of UTC (select Accra, Ghana for a city that's always on UTC if you don't find UTC as a direct option). [slightly OT] ... I wrote an ISS tracking program for iPhone a couple of years ago and discovered my phone to be up to two minutes off true time (I went as far as writing a network time client into my prediction software to get better time!). Apparently, 'cellular phone time' commonly deviated by large amounts. More recently, iPhone time is much more closer to true -- I don't know if the phone company is doing a better job or the iPhone is using network time instead. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://mailman.satobs.org/mailman/private/seesat-l/attachments/20111113/e83ad7ec/attachment.html _______________________________________________ Seesat-l mailing list http://mailman.satobs.org/mailman/listinfo/seesat-l
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