You are totally right, I am sorry. I would hate to miss my plane or train
due to such mistake.
Satyam
----- Original Message -----
From: "Lester Caine" <lester@xxxxxxxxxxx>
To: <php-general@xxxxxxxxxxxxx>
Sent: Tuesday, April 10, 2007 6:29 PM
Subject: Re: Dates and different time zones
Satyam wrote:
Of cause the major fault with this is that it can only display the
CURRENT time offset. You *ALSO* need the users Daylight Saving Zone as
well. This has been giving us great fun since the winter dates and times
need a different offset to the summer ones. Something that simplistic
browser time offset does not supply. :(
The point is that you don't store the time offset in any user profile or
anywhere but a session variable, which you keep for the duration of the
session so it lasts only while the user is connected, whether logged in
or not, profile or not. Next time he/she connects you get the new
offset. If the time has changed due to daylight savings or the user
travelling elsewhere, you'll get a new offset.
The only time it fails is if the user is connected while the time switch
is happening, but so will most of the clocks, watches and whatever is on
at the time.
Please read what I wrote.
The time offset from the browser is only of use to map CURRENT time. It is
no use to display dates and times stored in the database that are reliant
on the daylight saving offset. If TOMORROW is after the change in daylight
saving, then the browser offset will not give you the right offset for
tomorrows. The problem is convincing people that there *IS* a real
problem, and trying to display the correct times JUST from a timezone
offset is wrong for at least half of the year! You need to know that the
time is changing tonight so that you can display tomorrows calendar
correctly?
--
Lester Caine - G8HFL
-----------------------------
Contact - http://home.lsces.co.uk/lsces/wiki/?page=contact
L.S.Caine Electronic Services - http://home.lsces.co.uk
MEDW - http://home.lsces.co.uk/ModelEngineersDigitalWorkshop/
Treasurer - Firebird Foundation Inc. -
http://www.firebirdsql.org/index.php
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