[AusNOG] Mobile network-provided time zone

[Noel Butler]

This seems a question for whingepool (its got nothing to do with running
IP networks) 

On 07/10/2018 06:36, Paul Gear wrote:

> Hi all,
> 
> In the past 10 or so years, I've used every major mobile carrier's
> network, through both the carrier directly and often through various
> resellers, and one thing remains consistent.  Every year on this
> weekend, when in Queensland, the network-provided time zone changes to
> UTC +11 (Sydney/Melbourne).  This is very handy when roaming overseas,
> but not so handy when it changes your time zone when it shouldn't.
> 
> What's causing this?  I know it's not NTP on the handset - I know a
> little about that, and it doesn't include time zone in packets, nor does
> it care about time zone when it adjusts the kernel.  I assumed that this
> feature was implemented on the mobile network side, and the mobile base
> station broadcasts its time zone along with the other information
> handsets need to connect to it.  But I don't know enough about the
> technical side of that to be sure.
> 
> The usual suggested remedy when I contact my carrier to complain that
> they're sending my phone the wrong time zone is to ask for the handset
> to rebooted.  Sometimes it works; sometimes it doesn't.  But why would
> it make any difference?
> 
> Can anyone shed any light on this?
> 
> Thanks in advance,
> Paul
> 
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-- 
Kind Regards, 

Noel Butler 

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