Comments on: Auto detect a time zone with JavaScript http://www.onlineaspect.com/2007/06/08/auto-detect-a-time-zone-with-javascript/ a blog about building stuff on the web Wed, 11 Aug 2010 16:25:07 +0000 hourly 1 http://wordpress.org/?v=3.0.1 By: Brad http://www.onlineaspect.com/2007/06/08/auto-detect-a-time-zone-with-javascript/comment-page-2/#comment-1198 Brad Tue, 10 Aug 2010 23:56:03 +0000 http://onlineaspect.com/2007/06/08/auto-detect-a-time-zone-with-javascript/#comment-1198 <script type="text/javascript"> var d = new Date() var gmtHours = -d.getTimezoneOffset()/60; document.write("The local time zone is: GMT " + gmtHours); </script> <script type="text/javascript">

var d = new Date()
var gmtHours = -d.getTimezoneOffset()/60;
document.write("The local time zone is: GMT " + gmtHours);

</script>

]]> By: Nicolas http://www.onlineaspect.com/2007/06/08/auto-detect-a-time-zone-with-javascript/comment-page-2/#comment-1217 Nicolas Fri, 06 Aug 2010 21:47:08 +0000 http://onlineaspect.com/2007/06/08/auto-detect-a-time-zone-with-javascript/#comment-1217 I updated the list that chris gave to include missing timezones: $timezones = array ( '-12:00,0' => 'Etc/GMT-12', '-11:00,0' => 'Pacific/Niue', '-10:00,0' => 'US/Hawaii', '-10:00,1' => 'America/Adak', '-09:00,0' => 'Pacific/Gambier', '-09:00,1' => 'US/Alaska', '-08:00,0' => 'Pacific/Pitcairn', '-08:00,1' => 'US/Pacific', '-07:00,0' => 'US/Arizona', '-07:00,1' => 'US/Mountain', '-06:00,0' => 'Canada/Saskatchewan', '-06:00,1' => 'US/Central', '-05:00,0' => 'US/Indiana-Starke', '-05:00,1' => 'US/Eastern', '-04:00,1' => 'Canada/Atlantic', '-04:00,0' => 'America/Caracas', '-03:30,1' => 'Canada/Newfoundland', '-03:00,1' => 'America/Godthab', '-03:00,0' => 'America/Argentina/Buenos_Aires', '-02:00,0' => 'America/Noronha', '-02:00,1' => 'Atlantic/South_Georgia', '-01:00,1' => 'Atlantic/Azores', '-01:00,0' => 'Atlantic/Cape_Verde', '00:00,0' => 'Africa/Casablanca', '00:00,1' => 'Europe/Dublin', '+01:00,1' => 'Europe/Paris', '+01:00,0' => 'Africa/Algiers', '+02:00,1' => 'Europe/Athens', '+02:00,0' => 'Africa/Harare', '+03:00,1' => 'Europe/Moscow', '+03:00,0' => 'Asia/Kuwait', '+03:30,0' => 'Asia/Tehran', '+04:00,0' => 'Asia/Muscat', '+04:00,1' => 'Asia/Baku', '+04:30,0' => 'Asia/Kabul', '+05:00,1' => 'Asia/Yekaterinburg', '+05:00,0' => 'Asia/Karachi', '+05:30,0' => 'Asia/Kolkata', '+05:45,0' => 'Asia/Katmandu', '+06:00,0' => 'Asia/Dhaka', '+06:00,1' => 'Asia/Almaty', '+06:30,0' => 'Asia/Rangoon', '+07:00,1' => 'Asia/Krasnoyarsk', '+07:00,0' => 'Asia/Bangkok', '+08:00,0' => 'Asia/Hong_Kong', '+08:00,1' => 'Australia/Perth', '+08:45,0' => 'Australia/Eucla', '+09:00,1' => 'Asia/Yakutsk', '+09:00,0' => 'Asia/Seoul', '+09:30,0' => 'Australia/Darwin', '+09:30,1' => 'Australia/Adelaide', '+10:00,0' => 'Australia/Brisbane', '+10:00,1' => 'Australia/Melbourne', '+10:30,1' => 'Australia/Lord_Howe', '+11:00,0' => 'Pacific/Noumea', '+11:00,1' => 'Asia/Magadan', '+11:30,0' => 'Pacific/Norfolk', '+12:00,1' => 'Pacific/Auckland', '+12:00,0' => 'Pacific/Fiji', '+12:45,1' => 'Pacific/Chatham', '+13:00,0' => 'Pacific/Tongatapu', '+14:00,0' => 'Pacific/Kiritimati', ); I updated the list that chris gave to include missing timezones:

$timezones = array (
'-12:00,0' => 'Etc/GMT-12',
'-11:00,0' => 'Pacific/Niue',
'-10:00,0' => 'US/Hawaii',
'-10:00,1' => 'America/Adak',
'-09:00,0' => 'Pacific/Gambier',
'-09:00,1' => 'US/Alaska',
'-08:00,0' => 'Pacific/Pitcairn',
'-08:00,1' => 'US/Pacific',
'-07:00,0' => 'US/Arizona',
'-07:00,1' => 'US/Mountain',
'-06:00,0' => 'Canada/Saskatchewan',
'-06:00,1' => 'US/Central',
'-05:00,0' => 'US/Indiana-Starke',
'-05:00,1' => 'US/Eastern',
'-04:00,1' => 'Canada/Atlantic',
'-04:00,0' => 'America/Caracas',
'-03:30,1' => 'Canada/Newfoundland',
'-03:00,1' => 'America/Godthab',
'-03:00,0' => 'America/Argentina/Buenos_Aires',
'-02:00,0' => 'America/Noronha',
'-02:00,1' => 'Atlantic/South_Georgia',
'-01:00,1' => 'Atlantic/Azores',
'-01:00,0' => 'Atlantic/Cape_Verde',
'00:00,0' => 'Africa/Casablanca',
'00:00,1' => 'Europe/Dublin',
'+01:00,1' => 'Europe/Paris',
'+01:00,0' => 'Africa/Algiers',
'+02:00,1' => 'Europe/Athens',
'+02:00,0' => 'Africa/Harare',
'+03:00,1' => 'Europe/Moscow',
'+03:00,0' => 'Asia/Kuwait',
'+03:30,0' => 'Asia/Tehran',
'+04:00,0' => 'Asia/Muscat',
'+04:00,1' => 'Asia/Baku',
'+04:30,0' => 'Asia/Kabul',
'+05:00,1' => 'Asia/Yekaterinburg',
'+05:00,0' => 'Asia/Karachi',
'+05:30,0' => 'Asia/Kolkata',
'+05:45,0' => 'Asia/Katmandu',
'+06:00,0' => 'Asia/Dhaka',
'+06:00,1' => 'Asia/Almaty',
'+06:30,0' => 'Asia/Rangoon',
'+07:00,1' => 'Asia/Krasnoyarsk',
'+07:00,0' => 'Asia/Bangkok',
'+08:00,0' => 'Asia/Hong_Kong',
'+08:00,1' => 'Australia/Perth',
'+08:45,0' => 'Australia/Eucla',
'+09:00,1' => 'Asia/Yakutsk',
'+09:00,0' => 'Asia/Seoul',
'+09:30,0' => 'Australia/Darwin',
'+09:30,1' => 'Australia/Adelaide',
'+10:00,0' => 'Australia/Brisbane',
'+10:00,1' => 'Australia/Melbourne',
'+10:30,1' => 'Australia/Lord_Howe',
'+11:00,0' => 'Pacific/Noumea',
'+11:00,1' => 'Asia/Magadan',
'+11:30,0' => 'Pacific/Norfolk',
'+12:00,1' => 'Pacific/Auckland',
'+12:00,0' => 'Pacific/Fiji',
'+12:45,1' => 'Pacific/Chatham',
'+13:00,0' => 'Pacific/Tongatapu',
'+14:00,0' => 'Pacific/Kiritimati',
);

]]> By: Josh Fraser http://www.onlineaspect.com/2007/06/08/auto-detect-a-time-zone-with-javascript/comment-page-2/#comment-1092 Josh Fraser Thu, 08 Jul 2010 05:30:39 +0000 http://onlineaspect.com/2007/06/08/auto-detect-a-time-zone-with-javascript/#comment-1092 you need to submit the form and store it server side or pass it through with an AJAX request you need to submit the form and store it server side or pass it through with an AJAX request

]]> By: Gustavo http://www.onlineaspect.com/2007/06/08/auto-detect-a-time-zone-with-javascript/comment-page-2/#comment-1089 Gustavo Thu, 08 Jul 2010 01:12:51 +0000 http://onlineaspect.com/2007/06/08/auto-detect-a-time-zone-with-javascript/#comment-1089 how i can grab the value from combobox option and put in a php session? how i can grab the value from combobox option and put in a php session?

]]> By: Chris Pickett http://www.onlineaspect.com/2007/06/08/auto-detect-a-time-zone-with-javascript/comment-page-2/#comment-962 Chris Pickett Sun, 13 Jun 2010 17:39:39 +0000 http://onlineaspect.com/2007/06/08/auto-detect-a-time-zone-with-javascript/#comment-962 For those looking for a php map to the select form here you go: $timezones = array ( '-12:00,0' => 'Etc/GMT-12', '-11:00,0' => 'Etc/GMT-11', '-10:00,0' => 'US/Hawaii', '-09:00,1' => 'US/Alaska', '-08:00,1' => 'US/Pacific', '-07:00,0' => 'US/Arizona', '-07:00,1' => 'US/Mountain', '-06:00,0' => 'Canada/Saskatchewan', '-06:00,1' => 'US/Central', '-05:00,0' => 'US/Indiana-Starke', '-05:00,1' => 'US/Eastern', '-04:00,1' => 'Canada/Atlantic', '-04:00,0' => 'America/Caracas', '-03:30,1' => 'Canada/Newfoundland', '-03:00,1' => 'America/Godthab', '-03:00,0' => 'America/Argentina/Buenos_Aires', '-02:00,1' => 'Atlantic/South_Georgia', '-01:00,1' => 'Atlantic/Azores', '-01:00,0' => 'Atlantic/Cape_Verde', '00:00,0' => 'Africa/Casablanca', '00:00,1' => 'Europe/Dublin', '+01:00,1' => 'Europe/Berlin', '+01:00,0' => 'Africa/Algiers', '+02:00,1' => 'Europe/Athens', '+02:00,0' => 'Africa/Harare', '+03:00,1' => 'Europe/Moscow', '+03:00,0' => 'Asia/Kuwait', '+03:30,0' => 'Asia/Tehran', '+04:00,0' => 'Asia/Muscat', '+04:00,1' => 'Asia/Baku', '+04:30,0' => 'Asia/Kabul', '+05:00,1' => 'Asia/Yekaterinburg', '+05:00,0' => 'Asia/Karachi', '+05:30,0' => 'Asia/Kolkata', '+05:45,0' => 'Asia/Katmandu', '+06:00,0' => 'Asia/Dhaka', '+06:00,1' => 'Asia/Almaty', '+06:30,0' => 'Asia/Rangoon', '+07:00,1' => 'Asia/Krasnoyarsk', '+07:00,0' => 'Asia/Bangkok', '+08:00,0' => 'Asia/Hong_Kong', '+08:00,1' => 'Australia/Perth', '+09:00,1' => 'Asia/Yakutsk', '+09:00,0' => 'Asia/Seoul', '+09:30,0' => 'Australia/Darwin', '+09:30,1' => 'Australia/Adelaide', '+10:00,0' => 'Australia/Brisbane', '+10:00,1' => 'Australia/Melbourne', '+11:00,0' => 'Asia/Magadan', '+12:00,1' => 'Pacific/Auckland' '+12:00,0' => 'Pacific/Fiji', '+13:00,0' => 'Pacific/Tongatapu'); Chris For those looking for a php map to the select form here you go:

$timezones = array (

'-12:00,0' => 'Etc/GMT-12',
'-11:00,0' => 'Etc/GMT-11',
'-10:00,0' => 'US/Hawaii',
'-09:00,1' => 'US/Alaska',
'-08:00,1' => 'US/Pacific',
'-07:00,0' => 'US/Arizona',
'-07:00,1' => 'US/Mountain',
'-06:00,0' => 'Canada/Saskatchewan',
'-06:00,1' => 'US/Central',
'-05:00,0' => 'US/Indiana-Starke',
'-05:00,1' => 'US/Eastern',
'-04:00,1' => 'Canada/Atlantic',
'-04:00,0' => 'America/Caracas',
'-03:30,1' => 'Canada/Newfoundland',
'-03:00,1' => 'America/Godthab',
'-03:00,0' => 'America/Argentina/Buenos_Aires',
'-02:00,1' => 'Atlantic/South_Georgia',
'-01:00,1' => 'Atlantic/Azores',
'-01:00,0' => 'Atlantic/Cape_Verde',
'00:00,0' => 'Africa/Casablanca',
'00:00,1' => 'Europe/Dublin',
'+01:00,1' => 'Europe/Berlin',
'+01:00,0' => 'Africa/Algiers',
'+02:00,1' => 'Europe/Athens',
'+02:00,0' => 'Africa/Harare',
'+03:00,1' => 'Europe/Moscow',
'+03:00,0' => 'Asia/Kuwait',
'+03:30,0' => 'Asia/Tehran',
'+04:00,0' => 'Asia/Muscat',
'+04:00,1' => 'Asia/Baku',
'+04:30,0' => 'Asia/Kabul',
'+05:00,1' => 'Asia/Yekaterinburg',
'+05:00,0' => 'Asia/Karachi',
'+05:30,0' => 'Asia/Kolkata',
'+05:45,0' => 'Asia/Katmandu',
'+06:00,0' => 'Asia/Dhaka',
'+06:00,1' => 'Asia/Almaty',
'+06:30,0' => 'Asia/Rangoon',
'+07:00,1' => 'Asia/Krasnoyarsk',
'+07:00,0' => 'Asia/Bangkok',
'+08:00,0' => 'Asia/Hong_Kong',
'+08:00,1' => 'Australia/Perth',
'+09:00,1' => 'Asia/Yakutsk',
'+09:00,0' => 'Asia/Seoul',
'+09:30,0' => 'Australia/Darwin',
'+09:30,1' => 'Australia/Adelaide',
'+10:00,0' => 'Australia/Brisbane',
'+10:00,1' => 'Australia/Melbourne',
'+11:00,0' => 'Asia/Magadan',
'+12:00,1' => 'Pacific/Auckland'
'+12:00,0' => 'Pacific/Fiji',
'+13:00,0' => 'Pacific/Tongatapu');

Chris

]]> By: @thepoetweets http://www.onlineaspect.com/2007/06/08/auto-detect-a-time-zone-with-javascript/comment-page-2/#comment-959 @thepoetweets Wed, 02 Jun 2010 08:34:41 +0000 http://onlineaspect.com/2007/06/08/auto-detect-a-time-zone-with-javascript/#comment-959 wow, that is so amazing! Thank You! :) wow, that is so amazing! Thank You! :)

]]> By: Jared http://www.onlineaspect.com/2007/06/08/auto-detect-a-time-zone-with-javascript/comment-page-2/#comment-958 Jared Wed, 02 Jun 2010 03:56:15 +0000 http://onlineaspect.com/2007/06/08/auto-detect-a-time-zone-with-javascript/#comment-958 Thanks for the code, it was very useful! Thanks for the code, it was very useful!

]]> By: Josh Fraser http://www.onlineaspect.com/2007/06/08/auto-detect-a-time-zone-with-javascript/comment-page-2/#comment-945 Josh Fraser Wed, 26 May 2010 04:20:05 +0000 http://onlineaspect.com/2007/06/08/auto-detect-a-time-zone-with-javascript/#comment-945 You're right. They just both have the same GMT offset and both support DST -- BUT at opposite times of the year. There really needs to be a follow up post to this because this method has so many flaws in it. It's ideal for getting a true GMT offset and the DST flag, but that's about it. You're right. They just both have the same GMT offset and both support DST — BUT at opposite times of the year. There really needs to be a follow up post to this because this method has so many flaws in it. It's ideal for getting a true GMT offset and the DST flag, but that's about it.

]]> By: Mhano http://www.onlineaspect.com/2007/06/08/auto-detect-a-time-zone-with-javascript/comment-page-2/#comment-944 Mhano Wed, 26 May 2010 01:13:04 +0000 http://onlineaspect.com/2007/06/08/auto-detect-a-time-zone-with-javascript/#comment-944 Surely Sydney and Vladivostok are not the same time zone?!?! Surely Sydney and Vladivostok are not the same time zone?!?!

]]> By: Stakshi http://www.onlineaspect.com/2007/06/08/auto-detect-a-time-zone-with-javascript/comment-page-2/#comment-906 Stakshi Tue, 20 Apr 2010 09:46:58 +0000 http://onlineaspect.com/2007/06/08/auto-detect-a-time-zone-with-javascript/#comment-906 is there way of chnaging time zone is there way of chnaging time zone

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