FWIW (at least a couple years ago) cell time is remarkably broken on
tmobile, periodically being as much as 15 mins off or sending down the wrong
time zone entirely.

I believe the android 'network' time sync actually uses ntp, so it is almost
as accurate as taking the gps clocks (and a lot easier on battery.)

On Mon, Mar 7, 2011 at 8:27 PM, liuyu <[email protected]> wrote:

> Hi, Hadmut,
>
> GPS consumes a lot battery power and only works at outdoor.
> Regular user would not always keep GPS on to sync the time.
> I think this is why android uses the mobile network instead of GPS to
> sync the time.
> Besides, if you can't get accurate time from your mobile network,
> you'd better check whether your network providers time synchronization
> first.
>
> On Mar 7, 7:01 pm, Hadmut <[email protected]> wrote:
> > Hi,
> >
> > I have a Motorola Milestone  (european version of the Droid). The
> > internal clock of my device is terribly unprecise, need to adjust it
> > every now and then.
> >
> > Ironically, the device has a builtin GPS receiver, and thus always the
> > precise time. Why doesn't android use the GPS signal to adjust it's
> > internal clock?
> >
> > (I have a rather old-fashioned navigation system in my car, that can't
> > compete with android, but continuosly sets the clock of my car to the
> > GPS time, so my car always has the accurate time.)
> >
> > regards
>
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