Hi, using PHP, I want to show the date in the members time zone. Their time zone preference will be saved in a database. All I need to know is how to modify date(""); to acomidate for this, or if there is another simple way.

Thanks in advance,

Matt

have you tried any of the other types of time functions? I dont know if they would give you the time of that persons computer but its worth a shot hers the link...

http://us2.php.net/manual/en/ref.datetime.php

If that doesnt work maybe javascript could do it.

Syphic

I know there is a specific way to do it in PHP, I remember seeing it done before. I dont want any user side coding such as javascript.

I wouldnt either... well i gave you the url oddly enough its messed up ill change that... but hope you find it

Syphic

I dont think there what I'm looking for, thanks anyway!
Anyone else know how I can do it?

Come on guys please, someone must know, i really need this.
Thanks

Only works if your server is setup to use PHP as a CGI, not as a module.


$current_tz = getenv("TZ");
echo "Current Time (".$current_tz.") : ". date("h:i:s")."\n";
putenv("TZ=US/Eastern");
echo "New Time (Eastern): ". date("h:i:s")."\n";
putenv("TZ=".$current_tz);
echo "Current Time (".$current_tz.") : ". date("h:i:s")."\n";


There are other ways, but this should do it for you.

Thanks, I spent ages searching before you replied and found this:
<?php
$hourdiff = "8";
$timeadjust = ($hourdiff * 60 * 60);
$date = date("l, tS F Y",time() + $timeadjust);
echo "$date";
?>
It works well and how I want it too, but I was wondering if there a way to set it so the server time appears as GMT standard, ie London so therefore it appears in Londons time when I just use this date(""); and would like it to appear in GMT I think I would need putenv for this, but dont know how to do it or if it is possible.
I want this so I can put $hourdiff = "1"; which would return (GMT+01:00).

Also I was wondering if date() takes in to account daylight saying times or not, if not is there a way to get it to do so.
Thanks

The I format string for date() will tell you if time is in daylight savings or not.

You can get the current time zone by getenv().

Thanks,
this returns no timezone :(:
$current_tz = getenv("TZ");
echo "<br />Current Time ($current_tz) : ". date("h:i:s")."\n";

Also, how would I use putenv("TZ="); to set it as GMT?

A few reasons why it doesn't work :

1. Your host has it disabled
2. You are running php in ISAPI (module) mode

putenv("TZ=GMT") should do it.

Thanks thats working great!

Use gmdate() to generate your dates in GMT, then store them in the database as such. Then for each user, store their GMT offset (e.g. -5 for Eastern Time) and then use strtotime() on the date in the database, add the (offset *3600) and then use date() to format it.