php或javascript中的World Clock API

Question

i just want to ask if where can we find the code that will display the world clock just like this one LINK that doesn't depend on my computer time..

is there any plugins for that? or a function that i can simply call.. ?

any help will be much appreciated..

Answer 1

Javascript: http://www.proglogic.com/code/javascript/time/worldclock.php

Probably too involved: http://worldtimeengine.com/api/code

Probably not too hard to do it yourself, PHP has pretty good date functions that when used with the correct timezone would allow you to easily get the time for any region in the world.

Example: (from http://www.bigresource.com/Tracker/Track-php-thNhheBb/)

<?php

$tz = date("Z");  //timezone offset of server in seconds

$est  = 3600 * -5;  // -0500 gmt
$cst  = 3600 * -6;
$mst  = 3600 * -7;
$pst  = 3600 * -8;
$hast = 3600 * -10;

// add (or subtract) the appropriate number of seconds from the offset to recalculate the time
echo date("h:i A", strtotime("now +" . ($hast - $tz) . " seconds"));

?> 

http://php.net/manual/en/timezones.php

You could combine this with GeoIP, which is a module for apache / php that uses the MaxMind database to resolve location information from your visitor's IP.