[time-nuts] How are iPhones' clocks set under LTE?

Shane Morris edgecomberts at gmail.com
Mon Aug 4 18:32:29 EDT 2014


Bill,

I just got Emerald Time for my iPad - quite a great app, considering I need
accurate time for things. Is there a website for the app developer?

Many thanks!

Shane.


On Tue, Aug 5, 2014 at 8:16 AM, Bob Camp <kb8tq at n1k.org> wrote:

> Hi
>
> I *think* it’s even more specific than that. I’ve watched it switch time
> driving down the road in Indiana. As we did zig zags over the time zone
> line, the iPhone quite happily changed displayed time. My guess was that it
> used GPS location info to decide which side of the line it was on.
>
> Bob
>
> On Aug 4, 2014, at 1:19 PM, Glen Hoag <hoag at hiwaay.net> wrote:
>
> > As someone who crosses time zone boundaries with relative frequency, I
> can tell you that the iPhone does indeed set it's time zone automatically,
> based on information the phone gets from the cellular network.
> >
> > Sent from my iPhone
> >
> >> On Aug 4, 2014, at 11:49, Chris Albertson <albertson.chris at gmail.com>
> wrote:
> >>
> >>> On Mon, Aug 4, 2014 at 5:38 AM, BIll Ezell <wje at quackers.net> wrote:
> >>>
> >>> Clearly, just using something like NTP directly isn't all that useful
> >>> because you have to know your physical location to know what timezone
> >>> correction to appl
> >>
> >> I'm pretty sure you have to set the time zone that is displayed.  It
> >> does not change based on location.  Although one col writ an app that
> >> would do that.  There are MANY clock apps some show multiple time
> >> zones.  Interannly the phone uses GMT (offset zero)
> >>
> >>
> >> --
> >>
> >> Chris Albertson
> >> Redondo Beach, California
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