egroupware/phpgwapi/inc/class.datetime.inc.php

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<?php
/**************************************************************************\
* phpGroupWare API - Commononly used functions *
* This file written by Dan Kuykendall <seek3r@phpgroupware.org> *
* and Joseph Engo <jengo@phpgroupware.org> *
* and Mark Peters <skeeter@phpgroupware.org> *
* Commononly used functions by phpGroupWare developers *
* Copyright (C) 2000, 2001 Dan Kuykendall *
* -------------------------------------------------------------------------*
* This library is part of the phpGroupWare API *
* http://www.phpgroupware.org/api *
* ------------------------------------------------------------------------ *
* This library is free software; you can redistribute it and/or modify it *
* under the terms of the GNU Lesser General Public License as published by *
* the Free Software Foundation; either version 2.1 of the License, *
* or any later version. *
* This library is distributed in the hope that it will be useful, but *
* WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. *
* See the GNU Lesser General Public License for more details. *
* You should have received a copy of the GNU Lesser General Public License *
* along with this library; if not, write to the Free Software Foundation, *
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA *
\**************************************************************************/
/* $Id$ */
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$d1 = strtolower(@substr(PHPGW_API_INC,0,3));
$d2 = strtolower(@substr(PHPGW_SERVER_ROOT,0,3));
$d3 = strtolower(@substr(PHPGW_APP_INC,0,3));
if($d1 == 'htt' || $d1 == 'ftp' || $d2 == 'htt' || $d2 == 'ftp' || $d3 == 'htt' || $d3 == 'ftp')
{
echo 'Failed attempt to break in via an old Security Hole!<br>'."\n";
exit;
}
unset($d1);
unset($d2);
unset($d3);
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/*!
@class datetime
@abstract datetime class that contains common date/time functions
*/
class datetime
{
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var $tz_offset;
var $TZs = Array();
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var $days = Array();
var $gmtnow = 0;
var $users_localtime;
var $gmtdate;
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function datetime()
{
$this->tz_offset = 3600 * intval($GLOBALS['phpgw_info']['user']['preferences']['common']['tz_offset']);
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print_debug('datetime::datetime::gmtnow',$this->gmtnow);
$error_occured = True;
// If we already have a GMT time, no need to do this again.
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if(!$this->gmtnow)
{
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if(isset($GLOBALS['phpgw_info']['server']['tz_offset']))
{
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$this->gmtnow = time() - (intval($GLOBALS['phpgw_info']['server']['tz_offset']) * 3600);
}
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else
{
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$this->gmtnow = $this->getbestguess();
}
}
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$this->users_localtime = $this->gmtnow + $this->tz_offset;
}
function getntpoffset()
{
$error_occured = False;
if(!@is_object($GLOBALS['phpgw']->network))
{
$GLOBALS['phpgw']->network = createobject('phpgwapi.network');
}
$server_time = time();
if($GLOBALS['phpgw']->network->open_port('129.6.15.28',13,5))
{
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$line = $GLOBALS['phpgw']->network->bs_read_port(64);
$GLOBALS['phpgw']->network->close_port();
$array = explode(' ',$line);
// host: 129.6.15.28
// Value returned is 52384 02-04-20 13:55:29 50 0 0 9.2 UTC(NIST) *
print_debug('Server datetime',time());
print_debug('Temporary NTP datetime',$line);
if ($array[5] == 4)
{
$error_occured = True;
}
else
{
$date = explode('-',$array[1]);
$time = explode(':',$array[2]);
$this->gmtnow = mktime(intval($time[0]),intval($time[1]),intval($time[2]),intval($date[1]),intval($date[2]),intval($date[0]) + 2000);
print_debug('Temporary RFC epoch',$this->gmtnow);
print_debug('GMT',date('Ymd H:i:s',$this->gmtnow));
}
}
else
{
$error_occured = True;
}
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if($error_occured == True)
{
return $this->getbestguess();
}
else
{
return intval(($server_time - $this->gmtnow) / 3600);
}
}
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function gethttpoffset()
{
$error_occured = False;
if(!@is_object($GLOBALS['phpgw']->network))
{
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$GLOBALS['phpgw']->network = createobject('phpgwapi.network');
}
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$server_time = time();
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$filename = 'http://132.163.4.213/timezone.cgi?GMT';
$file = $GLOBALS['phpgw']->network->gethttpsocketfile($filename);
if(!$file)
{
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return $this->getbestguess();
}
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$time = strip_tags($file[55]);
$date = strip_tags($file[56]);
print_debug('GMT DateTime',$date.' '.$time);
$dt_array = explode(' ',$date);
$temp_datetime = $dt_array[0].' '.substr($dt_array[2],0,-1).' '.substr($dt_array[1],0,3).' '.$dt_array[3].' '.$time.' GMT';
print_debug('Reformulated GMT DateTime',$temp_datetime);
$this->gmtnow = $this->convert_rfc_to_epoch($temp_datetime);
print_debug('this->gmtnow',$this->gmtnow);
print_debug('server time',$server_time);
print_debug('server DateTime',date('D, d M Y H:i:s',$server_time));
return intval(($server_time - $this->gmtnow) / 3600);
}
function getbestguess()
{
print_debug('datetime::datetime::debug: Inside getting from local server');
$server_time = time();
// Calculate GMT time...
// If DST, add 1 hour...
// - (date('I') == 1?3600:0)
$this->gmtnow = $this->convert_rfc_to_epoch(gmdate('D, d M Y H:i:s',$server_time).' GMT');
return intval(($server_time - $this->gmtnow) / 3600);
}
function convert_rfc_to_epoch($date_str)
{
$comma_pos = strpos($date_str,',');
if($comma_pos)
{
$date_str = substr($date_str,$comma_pos+1);
}
// This may need to be a reference to the different months in native tongue....
$month= array(
'Jan' => 1,
'Feb' => 2,
'Mar' => 3,
'Apr' => 4,
'May' => 5,
'Jun' => 6,
'Jul' => 7,
'Aug' => 8,
'Sep' => 9,
'Oct' => 10,
'Nov' => 11,
'Dec' => 12
);
$dta = array();
$ta = array();
// Convert "15 Jul 2000 20:50:22 +0200" to unixtime
$dta = explode(' ',$date_str);
$ta = explode(':',$dta[4]);
if(substr($dta[5],0,3) <> 'GMT')
{
$tzoffset = substr($dta[5],0,1);
$tzhours = intval(substr($dta[5],1,2));
$tzmins = intval(substr($dta[5],3,2));
switch ($tzoffset)
{
case '-':
(int)$ta[0] += $tzhours;
(int)$ta[1] += $tzmins;
break;
case '+':
(int)$ta[0] -= $tzhours;
(int)$ta[1] -= $tzmins;
break;
}
}
return mktime($ta[0],$ta[1],$ta[2],$month[$dta[2]],$dta[1],$dta[3]);
}
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function get_weekday_start($year,$month,$day)
{
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$weekday = $this->day_of_week($year,$month,$day);
switch($GLOBALS['phpgw_info']['user']['preferences']['calendar']['weekdaystarts'])
{
// Saturday is for arabic support
case 'Saturday':
$this->days = Array(
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0 => Array(
'name' => 'Sat',
'weekday' => 0
),
1 => Array(
'name' => 'Sun',
'weekday' => 0
),
2 => Array(
'name' => 'Mon',
'weekday' => 1
),
3 => Array(
'name' => 'Tue',
'weekday' => 1
),
4 => Array(
'name' => 'Wed',
'weekday' => 1
),
5 => Array(
'name' => 'Thu',
'weekday' => 1
),
6 => Array(
'name' => 'Fri',
'weekday' => 1
)
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);
switch($weekday)
{
case 0:
$sday = mktime(2,0,0,$month,$day - 1,$year);
break;
case 6:
$sday = mktime(2,0,0,$month,$day,$year);
break;
default:
$sday = mktime(2,0,0,$month,$day - ($weekday + 1),$year);
break;
}
break;
case 'Monday':
$this->days = Array(
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0 => Array(
'name' => 'Mon',
'weekday' => 1
),
1 => Array(
'name' => 'Tue',
'weekday' => 1
),
2 => Array(
'name' => 'Wed',
'weekday' => 1
),
3 => Array(
'name' => 'Thu',
'weekday' => 1
),
4 => Array(
'name' => 'Fri',
'weekday' => 1
),
5 => Array(
'name' => 'Sat',
'weekday' => 0
),
6 => Array(
'name' => 'Sun',
'weekday' => 0
)
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);
switch($weekday)
{
case 0:
$sday = mktime(2,0,0,$month,$day - 6,$year);
break;
case 1:
$sday = mktime(2,0,0,$month,$day,$year);
break;
default:
$sday = mktime(2,0,0,$month,$day - ($weekday - 1),$year);
break;
}
break;
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case 'Sunday':
default:
$this->days = Array(
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0 => Array(
'name' => 'Sun',
'weekday' => 0
),
1 => Array(
'name' => 'Mon',
'weekday' => 1
),
2 => Array(
'name' => 'Tue',
'weekday' => 1
),
3 => Array(
'name' => 'Wed',
'weekday' => 1
),
4 => Array(
'name' => 'Thu',
'weekday' => 1
),
5 => Array(
'name' => 'Fri',
'weekday' => 1
),
6 => Array(
'name' => 'Sat',
'weekday' => 0
)
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);
$sday = mktime(2,0,0,$month,$day - $weekday,$year);
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break;
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}
return $sday - 7200;
}
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function is_leap_year($year)
{
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if ((intval($year) % 4 == 0) && (intval($year) % 100 != 0) || (intval($year) % 400 == 0))
{
return 1;
}
else
{
return 0;
}
}
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function days_in_month($month,$year)
{
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$days = Array(
1 => 31,
2 => 28 + $this->is_leap_year(intval($year)),
3 => 31,
4 => 30,
5 => 31,
6 => 30,
7 => 31,
8 => 31,
9 => 30,
10 => 31,
11 => 30,
12 => 31
);
return $days[intval($month)];
}
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function date_valid($year,$month,$day)
{
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return checkdate(intval($month),intval($day),intval($year));
}
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function time_valid($hour,$minutes,$seconds)
{
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if(intval($hour) < 0 || intval($hour) > 24)
{
return False;
}
if(intval($minutes) < 0 || intval($minutes) > 59)
{
return False;
}
if(intval($seconds) < 0 || intval($seconds) > 59)
{
return False;
}
return True;
}
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function day_of_week($year,$month,$day)
{
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if($month > 2)
{
$month -= 2;
}
else
{
$month += 10;
$year--;
}
$day = (floor((13 * $month - 1) / 5) + $day + ($year % 100) + floor(($year % 100) / 4) + floor(($year / 100) / 4) - 2 * floor($year / 100) + 77);
return (($day - 7 * floor($day / 7)));
}
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function day_of_year($year,$month,$day)
{
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$days = array(0,31,59,90,120,151,181,212,243,273,304,334);
$julian = ($days[$month - 1] + $day);
if($month > 2 && $this->is_leap_year($year))
{
$julian++;
}
return($julian);
}
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function date_compare($a_year,$a_month,$a_day,$b_year,$b_month,$b_day)
{
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$a_date = mktime(0,0,0,intval($a_month),intval($a_day),intval($a_year));
$b_date = mktime(0,0,0,intval($b_month),intval($b_day),intval($b_year));
if($a_date == $b_date)
{
return 0;
}
elseif($a_date > $b_date)
{
return 1;
}
elseif($a_date < $b_date)
{
return -1;
}
}
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function time_compare($a_hour,$a_minute,$a_second,$b_hour,$b_minute,$b_second)
{
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$a_time = mktime(intval($a_hour),intval($a_minute),intval($a_second),0,0,70);
$b_time = mktime(intval($b_hour),intval($b_minute),intval($b_second),0,0,70);
if($a_time == $b_time)
{
return 0;
}
elseif($a_time > $b_time)
{
return 1;
}
elseif($a_time < $b_time)
{
return -1;
}
}
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function makegmttime($hour,$minute,$second,$month,$day,$year)
{
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return $this->gmtdate(mktime($hour, $minute, $second, $month, $day, $year));
}
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function localdates($localtime)
{
$date = Array('raw','day','month','year','full','dow','dm','bd');
$date['raw'] = $localtime;
$date['year'] = intval($GLOBALS['phpgw']->common->show_date($date['raw'],'Y'));
$date['month'] = intval($GLOBALS['phpgw']->common->show_date($date['raw'],'m'));
$date['day'] = intval($GLOBALS['phpgw']->common->show_date($date['raw'],'d'));
$date['full'] = intval($GLOBALS['phpgw']->common->show_date($date['raw'],'Ymd'));
$date['bd'] = mktime(0,0,0,$date['month'],$date['day'],$date['year']);
$date['dm'] = intval($GLOBALS['phpgw']->common->show_date($date['raw'],'dm'));
$date['dow'] = $this->day_of_week($date['year'],$date['month'],$date['day']);
$date['hour'] = intval($GLOBALS['phpgw']->common->show_date($date['raw'],'H'));
$date['minute'] = intval($GLOBALS['phpgw']->common->show_date($date['raw'],'i'));
$date['second'] = intval($GLOBALS['phpgw']->common->show_date($date['raw'],'s'));
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return $date;
}
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function gmtdate($localtime)
{
return $this->localdates($localtime - $this->tz_offset);
}
function timezone_list()
{
$this->TZs = Array(
'US/Alaska',
'US/Aleutian',
'US/Arizona',
'US/Central',
'US/Eastern',
'US/East-Indiana',
'US/Hawaii',
'US/Indiana-Starke',
'US/Michigan',
'US/Mountain',
'US/Pacific',
'US/Samoa',
'Africa/Abidjan',
'Africa/Accra',
'Africa/Addis_Ababa',
'Africa/Algiers',
'Africa/Asmera',
'Africa/Bamako',
'Africa/Bangui',
'Africa/Banjul',
'Africa/Bissau',
'Africa/Blantyre',
'Africa/Brazzaville',
'Africa/Bujumbura',
'Africa/Cairo',
'Africa/Casablanca',
'Africa/Ceuta',
'Africa/Conakry',
'Africa/Dakar',
'Africa/Dar_es_Salaam',
'Africa/Djibouti',
'Africa/Douala',
'Africa/El_Aaiun',
'Africa/Freetown',
'Africa/Gaborone',
'Africa/Harare',
'Africa/Johannesburg',
'Africa/Kampala',
'Africa/Khartoum',
'Africa/Kigali',
'Africa/Kinshasa',
'Africa/Lagos',
'Africa/Libreville',
'Africa/Lome',
'Africa/Luanda',
'Africa/Lubumbashi',
'Africa/Lusaka',
'Africa/Malabo',
'Africa/Maputo',
'Africa/Maseru',
'Africa/Mbabane',
'Africa/Mogadishu',
'Africa/Monrovia',
'Africa/Nairobi',
'Africa/Ndjamena',
'Africa/Niamey',
'Africa/Nouakchott',
'Africa/Ouagadougou',
'Africa/Porto-Novo',
'Africa/Sao_Tome',
'Africa/Timbuktu',
'Africa/Tripoli',
'Africa/Tunis',
'Africa/Windhoek',
'America/Adak',
'America/Anchorage',
'America/Anguilla',
'America/Antigua',
'America/Araguaina',
'America/Aruba',
'America/Asuncion',
'America/Atka',
'America/Barbados',
'America/Belem',
'America/Belize',
'America/Boa_Vista',
'America/Bogota',
'America/Boise',
'America/Buenos_Aires',
'America/Cambridge_Bay',
'America/Cancun',
'America/Caracas',
'America/Catamarca',
'America/Cayenne',
'America/Cayman',
'America/Chicago',
'America/Chihuahua',
'America/Cordoba',
'America/Costa_Rica',
'America/Cuiaba',
'America/Curacao',
'America/Dawson',
'America/Dawson_Creek',
'America/Denver',
'America/Detroit',
'America/Dominica',
'America/Edmonton',
'America/El_Salvador',
'America/Ensenada',
'America/Fortaleza',
'America/Fort_Wayne',
'America/Glace_Bay',
'America/Godthab',
'America/Goose_Bay',
'America/Grand_Turk',
'America/Grenada',
'America/Guadeloupe',
'America/Guatemala',
'America/Guayaquil',
'America/Guyana',
'America/Halifax',
'America/Havana',
'America/Hermosillo',
'America/Indiana/Indianapolis',
'America/Indiana/Knox',
'America/Indiana/Marengo',
'America/Indiana/Vevay',
'America/Indianapolis',
'America/Inuvik',
'America/Iqaluit',
'America/Jamaica',
'America/Jujuy',
'America/Juneau',
'America/Knox_IN',
'America/La_Paz',
'America/Lima',
'America/Los_Angeles',
'America/Louisville',
'America/Maceio',
'America/Managua',
'America/Manaus',
'America/Martinique',
'America/Mazatlan',
'America/Mendoza',
'America/Menominee',
'America/Mexico_City',
'America/Miquelon',
'America/Montevideo',
'America/Montreal',
'America/Montserrat',
'America/Nassau',
'America/New_York',
'America/Nipigon',
'America/Nome',
'America/Noronha',
'America/Panama',
'America/Pangnirtung',
'America/Paramaribo',
'America/Phoenix',
'America/Port-au-Prince',
'America/Porto_Acre',
'America/Port_of_Spain',
'America/Porto_Velho',
'America/Puerto_Rico',
'America/Rainy_River',
'America/Rankin_Inlet',
'America/Regina',
'America/Rosario',
'America/Santiago',
'America/Santo_Domingo',
'America/Sao_Paulo',
'America/Scoresbysund',
'America/Shiprock',
'America/St_Johns',
'America/St_Kitts',
'America/St_Lucia',
'America/St_Thomas',
'America/St_Vincent',
'America/Swift_Current',
'America/Tegucigalpa',
'America/Thule',
'America/Thunder_Bay',
'America/Tijuana',
'America/Tortola',
'America/Vancouver',
'America/Virgin',
'America/Whitehorse',
'America/Winnipeg',
'America/Yakutat',
'America/Yellowknife',
'Antarctica/Casey',
'Antarctica/Davis',
'Antarctica/DumontDUrville',
'Antarctica/Mawson',
'Antarctica/McMurdo',
'Antarctica/Palmer',
'Antarctica/South_Pole',
'Antarctica/Syowa',
'Arctic/Longyearbyen',
'Asia/Aden',
'Asia/Almaty',
'Asia/Amman',
'Asia/Anadyr',
'Asia/Aqtau',
'Asia/Aqtobe',
'Asia/Ashkhabad',
'Asia/Baghdad',
'Asia/Bahrain',
'Asia/Baku',
'Asia/Bangkok',
'Asia/Beirut',
'Asia/Bishkek',
'Asia/Brunei',
'Asia/Calcutta',
'Asia/Chungking',
'Asia/Colombo',
'Asia/Dacca',
'Asia/Damascus',
'Asia/Dili',
'Asia/Dubai',
'Asia/Dushanbe',
'Asia/Gaza',
'Asia/Harbin',
'Asia/Hong_Kong',
'Asia/Hovd',
'Asia/Irkutsk',
'Asia/Istanbul',
'Asia/Jakarta',
'Asia/Jayapura',
'Asia/Jerusalem',
'Asia/Kabul',
'Asia/Kamchatka',
'Asia/Karachi',
'Asia/Kashgar',
'Asia/Katmandu',
'Asia/Krasnoyarsk',
'Asia/Kuala_Lumpur',
'Asia/Kuching',
'Asia/Kuwait',
'Asia/Macao',
'Asia/Magadan',
'Asia/Manila',
'Asia/Muscat',
'Asia/Nicosia',
'Asia/Novosibirsk',
'Asia/Omsk',
'Asia/Phnom_Penh',
'Asia/Pyongyang',
'Asia/Qatar',
'Asia/Rangoon',
'Asia/Riyadh',
'Asia/Riyadh87',
'Asia/Riyadh88',
'Asia/Riyadh89',
'Asia/Saigon',
'Asia/Samarkand',
'Asia/Seoul',
'Asia/Shanghai',
'Asia/Singapore',
'Asia/Taipei',
'Asia/Tashkent',
'Asia/Tbilisi',
'Asia/Tehran',
'Asia/Tel_Aviv',
'Asia/Thimbu',
'Asia/Tokyo',
'Asia/Ujung_Pandang',
'Asia/Ulaanbaatar',
'Asia/Ulan_Bator',
'Asia/Urumqi',
'Asia/Vientiane',
'Asia/Vladivostok',
'Asia/Yakutsk',
'Asia/Yekaterinburg',
'Asia/Yerevan',
'Atlantic/Azores',
'Atlantic/Bermuda',
'Atlantic/Canary',
'Atlantic/Cape_Verde',
'Atlantic/Faeroe',
'Atlantic/Jan_Mayen',
'Atlantic/Madeira',
'Atlantic/Reykjavik',
'Atlantic/South_Georgia',
'Atlantic/Stanley',
'Atlantic/St_Helena',
'Australia/ACT',
'Australia/Adelaide',
'Australia/Brisbane',
'Australia/Broken_Hill',
'Australia/Canberra',
'Australia/Darwin',
'Australia/Hobart',
'Australia/LHI',
'Australia/Lindeman',
'Australia/Lord_Howe',
'Australia/Melbourne',
'Australia/North',
'Australia/NSW',
'Australia/Perth',
'Australia/Queensland',
'Australia/South',
'Australia/Sydney',
'Australia/Tasmania',
'Australia/Victoria',
'Australia/West',
'Australia/Yancowinna',
'Brazil/Acre',
'Brazil/DeNoronha',
'Brazil/East',
'Brazil/West',
'Canada/Atlantic',
'Canada/Central',
'Canada/Eastern',
'Canada/East-Saskatchewan',
'Canada/Mountain',
'Canada/Newfoundland',
'Canada/Pacific',
'Canada/Saskatchewan',
'Canada/Yukon',
'CET',
'Chile/Continental',
'Chile/EasterIsland',
'China/Beijing',
'China/Shanghai',
'CST6CDT',
'Cuba',
'EET',
'Egypt',
'Eire',
'EST',
'EST5EDT',
'Europe/Amsterdam',
'Europe/Andorra',
'Europe/Athens',
'Europe/Belfast',
'Europe/Belgrade',
'Europe/Berlin',
'Europe/Bratislava',
'Europe/Brussels',
'Europe/Bucharest',
'Europe/Budapest',
'Europe/Chisinau',
'Europe/Copenhagen',
'Europe/Dublin',
'Europe/Gibraltar',
'Europe/Helsinki',
'Europe/Istanbul',
'Europe/Kaliningrad',
'Europe/Kiev',
'Europe/Lisbon',
'Europe/Ljubljana',
'Europe/London',
'Europe/Luxembourg',
'Europe/Madrid',
'Europe/Malta',
'Europe/Minsk',
'Europe/Monaco',
'Europe/Moscow',
'Europe/Oslo',
'Europe/Paris',
'Europe/Prague',
'Europe/Riga',
'Europe/Rome',
'Europe/Samara',
'Europe/San_Marino',
'Europe/Sarajevo',
'Europe/Simferopol',
'Europe/Skopje',
'Europe/Sofia',
'Europe/Stockholm',
'Europe/Tallinn',
'Europe/Tirane',
'Europe/Tiraspol',
'Europe/Uzhgorod',
'Europe/Vaduz',
'Europe/Vatican',
'Europe/Vienna',
'Europe/Vilnius',
'Europe/Warsaw',
'Europe/Zagreb',
'Europe/Zaporozhye',
'Europe/Zurich',
'Factory',
'GB',
'GB-Eire',
'GMT',
'GMT0',
'GMT-0',
'GMT+0',
'Greenwich',
'Hongkong',
'HST',
'Iceland',
'Indian/Antananarivo',
'Indian/Chagos',
'Indian/Christmas',
'Indian/Cocos',
'Indian/Comoro',
'Indian/Kerguelen',
'Indian/Mahe',
'Indian/Maldives',
'Indian/Mauritius',
'Indian/Mayotte',
'Indian/Reunion',
'Iran',
'Israel',
'Jamaica',
'Japan',
'Kwajalein',
'Libya',
'MET',
'Mexico/BajaNorte',
'Mexico/BajaSur',
'Mexico/General',
'Mideast/Riyadh87',
'Mideast/Riyadh88',
'Mideast/Riyadh89',
'MST',
'MST7MDT',
'Navajo',
'NZ',
'NZ-CHAT',
'Pacific/Apia',
'Pacific/Auckland',
'Pacific/Chatham',
'Pacific/Easter',
'Pacific/Efate',
'Pacific/Enderbury',
'Pacific/Fakaofo',
'Pacific/Fiji',
'Pacific/Funafuti',
'Pacific/Galapagos',
'Pacific/Gambier',
'Pacific/Guadalcanal',
'Pacific/Guam',
'Pacific/Honolulu',
'Pacific/Johnston',
'Pacific/Kiritimati',
'Pacific/Kosrae',
'Pacific/Kwajalein',
'Pacific/Majuro',
'Pacific/Marquesas',
'Pacific/Midway',
'Pacific/Nauru',
'Pacific/Niue',
'Pacific/Norfolk',
'Pacific/Noumea',
'Pacific/Pago_Pago',
'Pacific/Palau',
'Pacific/Pitcairn',
'Pacific/Ponape',
'Pacific/Port_Moresby',
'Pacific/Rarotonga',
'Pacific/Saipan',
'Pacific/Samoa',
'Pacific/Tahiti',
'Pacific/Tarawa',
'Pacific/Tongatapu',
'Pacific/Truk',
'Pacific/Wake',
'Pacific/Wallis',
'Pacific/Yap',
'Poland',
'Portugal',
'PRC',
'PST8PDT',
'ROC',
'ROK',
'Singapore',
'Turkey',
'UCT',
'Universal',
'UTC',
'WET',
'W-SU',
'Zulu'
);
}
}
?>