Re: Detecting timezone for client browser

Tech-Archive recommends: Fix windows errors by optimizing your registry

From: Kevin Spencer (kevin_at_takempis.com)
Date: 03/19/04 

Date: Fri, 19 Mar 2004 13:02:36 -0500

Good point. A much harder alternative would be to do a WHOIS lookup on the
IP address of the client computer, and see what (if any) LatLong and/or
address data is registered for the IP or the Network that owns the IP. 

-- 
HTH,
Kevin Spencer
.Net Developer
Microsoft MVP
Big things are made up
of lots of little things.
"Bryan Donaldson" <bryandonaldsonREMOVETHIS@REMOVETHISmindspring.com> wrote
in message news:eItf3jdDEHA.4076@TK2MSFTNGP10.phx.gbl...
> Note that this solution assumes (as you must) that the time on the PC is
set
> correctly. But you should warn the user that you're making that
assumption.
>
>
> "Kevin Spencer" <kevin@takempis.com> wrote in message
> news:emkI$jbDEHA.3016@TK2MSFTNGP11.phx.gbl...
> > On your server, you should know the UTC (GMT) time. On the client, the
> > browser knows what the local time is. If you have some JavaScript on the
> > client that populates a hidden form field with the current (client) date
> and
> > time, when it posts back to the server, it's a relatively simple meatter
> of
> > DateTime arithmeetic to determine the difference in the time, which is
> what
> > you really need, rather than the time zone.
> >
>
>

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