Re: Dates and different time zones

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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
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