Can now choose timezone option from config

3 files changed, 13 insertions, 55 deletions

diff --git a/functions/date_functions.php b/functions/date_functions.php
index 2f73543..4683caa 100644
--- a/functions/date_functions.php
+++ b/functions/date_functions.php
@@ -1 +1 @@
-<?php
// date_functions.php
// functions for returning or comparing dates

// takes Apple's 2 character day format and makes it into 3 characters
function two2threeCharDays($day) {
	switch($day) {
		case 'SU': $day_longer = 'sun'; break;
		case 'MO': $day_longer = 'mon'; break;
		case 'TU': $day_longer = 'tue'; break;
		case 'WE': $day_longer = 'wed'; break;
		case 'TH': $day_longer = 'thu'; break;
		case 'FR': $day_longer = 'fri'; break;
		case 'SA': $day_longer = 'sat'; break;
	}
	return $day_longer;
}

// dateOfWeek() takes a date in Ymd and a day of week in 3 letters or more
// and returns the date of that day. (ie: "sun" or "sunday" would be acceptable values of $day but not "su")
function dateOfWeek($Ymd, $day) {
	global $week_start_day;
	if (!isset($week_start_day)) $week_start_day = 'Sunday';
	$timestamp = strtotime($Ymd);
	$num = date('w', strtotime($week_start_day));
	$start_day_time = strtotime((date('w',$timestamp)==$num ? "$week_start_day" : "last $week_start_day"), $timestamp);
	$ret_unixtime = strtotime($day,$start_day_time);
	$ret_unixtime = strtotime('+12 hours', $ret_unixtime);
	$ret = date('Ymd',$ret_unixtime);
	return $ret;
}

// function to compare to dates in Ymd and return the number of weeks 
// that differ between them. requires dateOfWeek()
function weekCompare($now, $then) {
	global $week_start_day;
	$sun_now = dateOfWeek($now, $week_start_day);
	$sun_then = dateOfWeek($then, $week_start_day);
	$seconds_now = strtotime($sun_now);
	$seconds_then =  strtotime($sun_then);
	$diff_seconds = $seconds_now - $seconds_then;
	$diff_minutes = $diff_seconds/60;
	$diff_hours = $diff_minutes/60;
	$diff_days = round($diff_hours/24);
	$diff_weeks = $diff_days/7;
	
	return $diff_weeks;
}

// function to compare to dates in Ymd and return the number of days 
// that differ between them.
function dayCompare($now, $then) {
	$seconds_now = strtotime($now);
	$seconds_then =  strtotime($then);
	$diff_seconds = $seconds_now - $seconds_then;
	$diff_minutes = $diff_seconds/60;
	$diff_hours = $diff_minutes/60;
	$diff_days = round($diff_hours/24);
	
	return $diff_days;
}

// function to compare to dates in Ymd and return the number of months 
// that differ between them.
function monthCompare($now, $then) {
	ereg ("([0-9]{4})([0-9]{2})([0-9]{2})", $now, $date_now);
	ereg ("([0-9]{4})([0-9]{2})([0-9]{2})", $then, $date_then);
	$diff_years = $date_now[1] - $date_then[1];
	$diff_months = $date_now[2] - $date_then[2];
	if ($date_now[2] < $date_then[2]) {
		$diff_years -= 1;
		$diff_months = ($diff_months + 12) % 12;
	}
	$diff_months = ($diff_years * 12) + $diff_months;

	return $diff_months;
}

function yearCompare($now, $then) {
	ereg ("([0-9]{4})([0-9]{2})([0-9]{2})", $now, $date_now);
	ereg ("([0-9]{4})([0-9]{2})([0-9]{2})", $then, $date_then);
	$diff_years = $date_now[1] - $date_then[1];
	return $diff_years;
}

// localizeDate() - similar to strftime but uses our preset arrays of localized
// months and week days and only supports %A, %a, %B, %b, %e, and %Y
// more can be added as needed but trying to keep it small while we can
function localizeDate($format, $timestamp) {
	global $daysofweek_lang, $daysofweekshort_lang, $daysofweekreallyshort_lang, $monthsofyear_lang, $monthsofyear_lang, $monthsofyearshort_lang;
	$year = date("Y", $timestamp);
	$month = date("n", $timestamp)-1;
	$day = date("j", $timestamp);
	$dayofweek = date("w", $timestamp);
	
	$date = str_replace('%Y', $year, $format);
	$date = str_replace('%e', $day, $date);
	$date = str_replace('%B', $monthsofyear_lang[$month], $date);
	$date = str_replace('%b', $monthsofyearshort_lang[$month], $date);
	$date = str_replace('%A', $daysofweek_lang[$dayofweek], $date);
	$date = str_replace('%a', $daysofweekshort_lang[$dayofweek], $date);
	
	return $date;	
	
}
// calcOffset takes an offset (ie, -0500) and returns it in the number of seconds
function calcOffset($offset_str) {
	$sign = substr($offset_str, 0, 1);
	$hours = substr($offset_str, 1, 2);
	$mins = substr($offset_str, 3, 2);
	$secs = ((int)$hours * 3600) + ((int)$mins * 60);
	if ($sign == '-') $secs = 0 - $secs;
	return $secs;
}

// calcTime calculates the unixtime of a new offset by comparing it to the current offset
// $have is the current offset (ie, '-0500')
// $want is the wanted offset (ie, '-0700')
// $time is the unixtime relative to $have
function calcTime($have, $want, $time) {
	$have_secs = calcOffset($have);
	$want_secs = calcOffset($want);
	$diff = $want_secs - $have_secs;
	$time += $diff;
	return $time;
}
?>
\ No newline at end of file
+<?php
// date_functions.php
// functions for returning or comparing dates

// not a date function, but I didn't know where to put it
// for backwards compatibility
if (phpversion() < '4.1') {
	function array_key_exists($key, $arr) {
		if (!is_array($arr)) return false;
		foreach (array_keys($arr) as $k) {
			if ("$k" == "$key") return true;
		}
		return false;
	}
}

// takes Apple's 2 character day format and makes it into 3 characters
function two2threeCharDays($day) {
	switch($day) {
		case 'SU': $day_longer = 'sun'; break;
		case 'MO': $day_longer = 'mon'; break;
		case 'TU': $day_longer = 'tue'; break;
		case 'WE': $day_longer = 'wed'; break;
		case 'TH': $day_longer = 'thu'; break;
		case 'FR': $day_longer = 'fri'; break;
		case 'SA': $day_longer = 'sat'; break;
	}
	return $day_longer;
}

// dateOfWeek() takes a date in Ymd and a day of week in 3 letters or more
// and returns the date of that day. (ie: "sun" or "sunday" would be acceptable values of $day but not "su")
function dateOfWeek($Ymd, $day) {
	global $week_start_day;
	if (!isset($week_start_day)) $week_start_day = 'Sunday';
	$timestamp = strtotime($Ymd);
	$num = date('w', strtotime($week_start_day));
	$start_day_time = strtotime((date('w',$timestamp)==$num ? "$week_start_day" : "last $week_start_day"), $timestamp);
	$ret_unixtime = strtotime($day,$start_day_time);
	$ret_unixtime = strtotime('+12 hours', $ret_unixtime);
	$ret = date('Ymd',$ret_unixtime);
	return $ret;
}

// function to compare to dates in Ymd and return the number of weeks 
// that differ between them. requires dateOfWeek()
function weekCompare($now, $then) {
	global $week_start_day;
	$sun_now = dateOfWeek($now, $week_start_day);
	$sun_then = dateOfWeek($then, $week_start_day);
	$seconds_now = strtotime($sun_now);
	$seconds_then =  strtotime($sun_then);
	$diff_seconds = $seconds_now - $seconds_then;
	$diff_minutes = $diff_seconds/60;
	$diff_hours = $diff_minutes/60;
	$diff_days = round($diff_hours/24);
	$diff_weeks = $diff_days/7;
	
	return $diff_weeks;
}

// function to compare to dates in Ymd and return the number of days 
// that differ between them.
function dayCompare($now, $then) {
	$seconds_now = strtotime($now);
	$seconds_then =  strtotime($then);
	$diff_seconds = $seconds_now - $seconds_then;
	$diff_minutes = $diff_seconds/60;
	$diff_hours = $diff_minutes/60;
	$diff_days = round($diff_hours/24);
	
	return $diff_days;
}

// function to compare to dates in Ymd and return the number of months 
// that differ between them.
function monthCompare($now, $then) {
	ereg ("([0-9]{4})([0-9]{2})([0-9]{2})", $now, $date_now);
	ereg ("([0-9]{4})([0-9]{2})([0-9]{2})", $then, $date_then);
	$diff_years = $date_now[1] - $date_then[1];
	$diff_months = $date_now[2] - $date_then[2];
	if ($date_now[2] < $date_then[2]) {
		$diff_years -= 1;
		$diff_months = ($diff_months + 12) % 12;
	}
	$diff_months = ($diff_years * 12) + $diff_months;

	return $diff_months;
}

function yearCompare($now, $then) {
	ereg ("([0-9]{4})([0-9]{2})([0-9]{2})", $now, $date_now);
	ereg ("([0-9]{4})([0-9]{2})([0-9]{2})", $then, $date_then);
	$diff_years = $date_now[1] - $date_then[1];
	return $diff_years;
}

// localizeDate() - similar to strftime but uses our preset arrays of localized
// months and week days and only supports %A, %a, %B, %b, %e, and %Y
// more can be added as needed but trying to keep it small while we can
function localizeDate($format, $timestamp) {
	global $daysofweek_lang, $daysofweekshort_lang, $daysofweekreallyshort_lang, $monthsofyear_lang, $monthsofyear_lang, $monthsofyearshort_lang;
	$year = date("Y", $timestamp);
	$month = date("n", $timestamp)-1;
	$day = date("j", $timestamp);
	$dayofweek = date("w", $timestamp);
	
	$date = str_replace('%Y', $year, $format);
	$date = str_replace('%e', $day, $date);
	$date = str_replace('%B', $monthsofyear_lang[$month], $date);
	$date = str_replace('%b', $monthsofyearshort_lang[$month], $date);
	$date = str_replace('%A', $daysofweek_lang[$dayofweek], $date);
	$date = str_replace('%a', $daysofweekshort_lang[$dayofweek], $date);
	
	return $date;	
	
}
// calcOffset takes an offset (ie, -0500) and returns it in the number of seconds
function calcOffset($offset_str) {
	$sign = substr($offset_str, 0, 1);
	$hours = substr($offset_str, 1, 2);
	$mins = substr($offset_str, 3, 2);
	$secs = ((int)$hours * 3600) + ((int)$mins * 60);
	if ($sign == '-') $secs = 0 - $secs;
	return $secs;
}

// calcTime calculates the unixtime of a new offset by comparing it to the current offset
// $have is the current offset (ie, '-0500')
// $want is the wanted offset (ie, '-0700')
// $time is the unixtime relative to $have
function calcTime($have, $want, $time) {
	if ($have == 'none' || $want == 'none') return $time;
	$have_secs = calcOffset($have);
	$want_secs = calcOffset($want);
	$diff = $want_secs - $have_secs;
	$time += $diff;
	return $time;
}

function chooseOffset($time) {
	global $timezone, $tz_array;
	if (!isset($timezone)) $timezone = '';
	switch ($timezone) {
		case '':
			$offset = 'none';
			break;
		case 'Same as Server':
			$offset = date('O', $time);
			break;
		default:
			if (is_array($tz_array) && array_key_exists($timezone, $tz_array)) {
				$dlst = date('I', $time);
				$offset = $tz_array[$timezone][$dlst];
			} else {
				$offset = '+0000';
			}
	}
	return $offset;
}


?>
\ No newline at end of file
diff --git a/functions/ical_parser.php b/functions/ical_parser.php
index 9362e13..5fdbd26 100644
--- a/functions/ical_parser.php
+++ b/functions/ical_parser.php
@@ -421,11 +421,19 @@ if ($parse_file) {
 					$start_unixtime = mktime($regs[4], $regs[5], 0, $regs[2], $regs[3], $regs[1]);
 
 					$dlst = date('I', $start_unixtime);
-					$server_offset_tmp = date('O', $start_unixtime);
+					$server_offset_tmp = chooseOffset($start_unixtime);
 					if (isset($tz_dtstart)) {
-						$offset_tmp = $tz_array[$tz_dtstart][$dlst];
+						if (array_key_exists($tz_dtstart, $tz_array)) {
+							$offset_tmp = $tz_array[$tz_dtstart][$dlst];
+						} else {
+							$offset_tmp = '+0000';
+						}
 					} elseif (isset($calendar_tz)) {
-						$offset_tmp = $tz_array[$calendar_tz][$dlst];
+						if (array_key_exists($calendar_tz, $tz_array)) {
+							$offset_tmp = $tz_array[$calendar_tz][$dlst];
+						} else {
+							$offset_tmp = '+0000';
+						}
 					} else {
 						$offset_tmp = $server_offset_tmp;
 					}
@@ -452,7 +460,7 @@ if ($parse_file) {
 					$end_unixtime = mktime($regs[4], $regs[5], 0, $regs[2], $regs[3], $regs[1]);
 
 					$dlst = date('I', $end_unixtime);
-					$server_offset_tmp = date('O', $start_unixtime);
+					$server_offset_tmp = chooseOffset($end_unixtime);
 					if (isset($tz_dtend)) {
 						$offset_tmp = $tz_array[$tz_dtend][$dlst];
 					} elseif (isset($calendar_tz)) {
diff --git a/functions/timezones.php b/functions/timezones.php
index 53c9364..fa42298 100644
--- a/functions/timezones.php
+++ b/functions/timezones.php
@@ -1,26 +1,16 @@
 <?php
-$tz_array['Africa/Abidjan'] = array('+0000', '+0000');
-$tz_array['Africa/Accra'] = array('+0000', '+0000');
 $tz_array['Africa/Addis_Ababa'] = array('+0300', '+0300');
 $tz_array['Africa/Algiers'] = array('+0100', '+0100');
 $tz_array['Africa/Asmera'] = array('+0300', '+0300');
-$tz_array['Africa/Bamako'] = array('+0000', '+0000');
 $tz_array['Africa/Bangui'] = array('+0100', '+0100');
-$tz_array['Africa/Banjul'] = array('+0000', '+0000');
-$tz_array['Africa/Bissau'] = array('+0000', '+0000');
 $tz_array['Africa/Blantyre'] = array('+0200', '+0200');
 $tz_array['Africa/Brazzaville'] = array('+0100', '+0100');
 $tz_array['Africa/Bujumbura'] = array('+0200', '+0200');
 $tz_array['Africa/Cairo'] = array('+0200', '+0300');
-$tz_array['Africa/Casablanca'] = array('+0000', '+0000');
 $tz_array['Africa/Ceuta'] = array('+0100', '+0200');
-$tz_array['Africa/Conakry'] = array('+0000', '+0000');
-$tz_array['Africa/Dakar'] = array('+0000', '+0000');
 $tz_array['Africa/Dar_es_Salaam'] = array('+0300', '+0300');
 $tz_array['Africa/Djibouti'] = array('+0300', '+0300');
 $tz_array['Africa/Douala'] = array('+0100', '+0100');
-$tz_array['Africa/El_Aaiun'] = array('+0000', '+0000');
-$tz_array['Africa/Freetown'] = array('+0000', '+0000');
 $tz_array['Africa/Gaborone'] = array('+0200', '+0200');
 $tz_array['Africa/Harare'] = array('+0200', '+0200');
 $tz_array['Africa/Johannesburg'] = array('+0200', '+0200');
@@ -30,7 +20,6 @@ $tz_array['Africa/Kigali'] = array('+0200', '+0200');
 $tz_array['Africa/Kinshasa'] = array('+0100', '+0100');
 $tz_array['Africa/Lagos'] = array('+0100', '+0100');
 $tz_array['Africa/Libreville'] = array('+0100', '+0100');
-$tz_array['Africa/Lome'] = array('+0000', '+0000');
 $tz_array['Africa/Luanda'] = array('+0100', '+0100');
 $tz_array['Africa/Lubumbashi'] = array('+0200', '+0200');
 $tz_array['Africa/Lusaka'] = array('+0200', '+0200');
@@ -39,15 +28,10 @@ $tz_array['Africa/Maputo'] = array('+0200', '+0200');
 $tz_array['Africa/Maseru'] = array('+0200', '+0200');
 $tz_array['Africa/Mbabane'] = array('+0200', '+0200');
 $tz_array['Africa/Mogadishu'] = array('+0300', '+0300');
-$tz_array['Africa/Monrovia'] = array('+0000', '+0000');
 $tz_array['Africa/Nairobi'] = array('+0300', '+0300');
 $tz_array['Africa/Ndjamena'] = array('+0100', '+0100');
 $tz_array['Africa/Niamey'] = array('+0100', '+0100');
-$tz_array['Africa/Nouakchott'] = array('+0000', '+0000');
-$tz_array['Africa/Ouagadougou'] = array('+0000', '+0000');
 $tz_array['Africa/Porto-Novo'] = array('+0100', '+0100');
-$tz_array['Africa/Sao_Tome'] = array('+0000', '+0000');
-$tz_array['Africa/Timbuktu'] = array('+0000', '+0000');
 $tz_array['Africa/Tripoli'] = array('+0200', '+0200');
 $tz_array['Africa/Tunis'] = array('+0100', '+0100');
 $tz_array['Africa/Windhoek'] = array('+0200', '+0100');
@@ -78,7 +62,6 @@ $tz_array['America/Cordoba'] = array('-0300', '-0300');
 $tz_array['America/Costa_Rica'] = array('-0600', '-0600');
 $tz_array['America/Cuiaba'] = array('-0300', '-0400');
 $tz_array['America/Curacao'] = array('-0400', '-0400');
-$tz_array['America/Danmarkshavn'] = array('+0000', '+0000');
 $tz_array['America/Dawson'] = array('-0800', '-0700');
 $tz_array['America/Dawson_Creek'] = array('-0700', '-0700');
 $tz_array['America/Denver'] = array('-0700', '-0600');
@@ -138,7 +121,6 @@ $tz_array['America/New_York'] = array('-0500', '-0400');
 $tz_array['America/Nipigon'] = array('-0500', '-0400');
 $tz_array['America/Nome'] = array('-0900', '-0800');
 $tz_array['America/Noronha'] = array('-0200', '-0200');
-$tz_array['America/North_Dakota/Center'] = array('+0000', '+0000');
 $tz_array['America/Panama'] = array('-0500', '-0500');
 $tz_array['America/Pangnirtung'] = array('-0500', '-0400');
 $tz_array['America/Paramaribo'] = array('-0300', '-0300');
@@ -202,8 +184,6 @@ $tz_array['Asia/Beirut'] = array('+0200', '+0300');
 $tz_array['Asia/Bishkek'] = array('+0500', '+0600');
 $tz_array['Asia/Brunei'] = array('+0800', '+0800');
 $tz_array['Asia/Calcutta'] = array('+051800', '+051800');
-$tz_array['Asia/Choibalsan'] = array('+0000', '+0000');
-$tz_array['Asia/Chongqing'] = array('+0000', '+0000');
 $tz_array['Asia/Chungking'] = array('+0800', '+0800');
 $tz_array['Asia/Colombo'] = array('+0600', '+0600');
 $tz_array['Asia/Dacca'] = array('+0600', '+0600');
@@ -217,7 +197,6 @@ $tz_array['Asia/Harbin'] = array('+0800', '+0800');
 $tz_array['Asia/Hong_Kong'] = array('+0800', '+0800');
 $tz_array['Asia/Hovd'] = array('+0700', '+0700');
 $tz_array['Asia/Irkutsk'] = array('+0800', '+0900');
-$tz_array['Asia/Ishigaki'] = array('+0000', '+0000');
 $tz_array['Asia/Istanbul'] = array('+0200', '+0300');
 $tz_array['Asia/Jakarta'] = array('+0700', '+0700');
 $tz_array['Asia/Jayapura'] = array('+0900', '+0900');
@@ -232,26 +211,21 @@ $tz_array['Asia/Kuala_Lumpur'] = array('+0800', '+0800');
 $tz_array['Asia/Kuching'] = array('+0800', '+0800');
 $tz_array['Asia/Kuwait'] = array('+0300', '+0300');
 $tz_array['Asia/Macao'] = array('+0800', '+0800');
-$tz_array['Asia/Macau'] = array('+0000', '+0000');
 $tz_array['Asia/Magadan'] = array('+1100', '+1200');
 $tz_array['Asia/Manila'] = array('+0800', '+0800');
 $tz_array['Asia/Muscat'] = array('+0400', '+0400');
 $tz_array['Asia/Nicosia'] = array('+0200', '+0300');
 $tz_array['Asia/Novosibirsk'] = array('+0600', '+0700');
 $tz_array['Asia/Omsk'] = array('+0600', '+0700');
-$tz_array['Asia/Oral'] = array('+0000', '+0000');
 $tz_array['Asia/Phnom_Penh'] = array('+0700', '+0700');
-$tz_array['Asia/Pontianak'] = array('+0000', '+0000');
 $tz_array['Asia/Pyongyang'] = array('+0900', '+0900');
 $tz_array['Asia/Qatar'] = array('+0300', '+0300');
-$tz_array['Asia/Qyzylorda'] = array('+0000', '+0000');
 $tz_array['Asia/Rangoon'] = array('+061800', '+061800');
 $tz_array['Asia/Riyadh'] = array('+0300', '+0300');
 $tz_array['Asia/Riyadh87'] = array('+03424', '+03424');
 $tz_array['Asia/Riyadh88'] = array('+03424', '+03424');
 $tz_array['Asia/Riyadh89'] = array('+03424', '+03424');
 $tz_array['Asia/Saigon'] = array('+0700', '+0700');
-$tz_array['Asia/Sakhalin'] = array('+0000', '+0000');
 $tz_array['Asia/Samarkand'] = array('+0500', '+0500');
 $tz_array['Asia/Seoul'] = array('+0900', '+0900');
 $tz_array['Asia/Shanghai'] = array('+0800', '+0800');
@@ -280,9 +254,7 @@ $tz_array['Atlantic/Cape_Verde'] = array('-0100', '-0100');
 $tz_array['Atlantic/Faeroe'] = array('+0000', '+0100');
 $tz_array['Atlantic/Jan_Mayen'] = array('-0100', '-0100');
 $tz_array['Atlantic/Madeira'] = array('+0000', '+0100');
-$tz_array['Atlantic/Reykjavik'] = array('+0000', '+0000');
 $tz_array['Atlantic/South_Georgia'] = array('-0200', '-0200');
-$tz_array['Atlantic/St_Helena'] = array('+0000', '+0000');
 $tz_array['Atlantic/Stanley'] = array('-0300', '-0400');
 $tz_array['Australia/ACT'] = array('+1100', '+1000');
 $tz_array['Australia/Adelaide'] = array('+101800', '+091800');
@@ -322,16 +294,12 @@ $tz_array['Canada/Saskatchewan'] = array('-0600', '-0600');
 $tz_array['Canada/Yukon'] = array('-0800', '-0700');
 $tz_array['Chile/Continental'] = array('-0300', '-0400');
 $tz_array['Chile/EasterIsland'] = array('-0500', '-0600');
-$tz_array['China/Beijing'] = array('+0000', '+0000');
-$tz_array['China/Shanghai'] = array('+0000', '+0000');
 $tz_array['Cuba'] = array('-0500', '-0400');
 $tz_array['EET'] = array('+0200', '+0300');
 $tz_array['EST'] = array('-0500', '-0500');
 $tz_array['EST5EDT'] = array('-0500', '-0400');
 $tz_array['Egypt'] = array('+0200', '+0300');
 $tz_array['Eire'] = array('+0000', '+0100');
-$tz_array['Etc/GMT'] = array('+0000', '+0000');
-$tz_array['Etc/GMT+0'] = array('+0000', '+0000');
 $tz_array['Etc/GMT+1'] = array('-0100', '-0100');
 $tz_array['Etc/GMT+10'] = array('-1000', '-1000');
 $tz_array['Etc/GMT+11'] = array('-1100', '-1100');
@@ -344,7 +312,6 @@ $tz_array['Etc/GMT+6'] = array('-0600', '-0600');
 $tz_array['Etc/GMT+7'] = array('-0700', '-0700');
 $tz_array['Etc/GMT+8'] = array('-0800', '-0800');
 $tz_array['Etc/GMT+9'] = array('-0900', '-0900');
-$tz_array['Etc/GMT-0'] = array('+0000', '+0000');
 $tz_array['Etc/GMT-1'] = array('+0100', '+0100');
 $tz_array['Etc/GMT-10'] = array('+1000', '+1000');
 $tz_array['Etc/GMT-11'] = array('+1100', '+1100');
@@ -359,12 +326,6 @@ $tz_array['Etc/GMT-6'] = array('+0600', '+0600');
 $tz_array['Etc/GMT-7'] = array('+0700', '+0700');
 $tz_array['Etc/GMT-8'] = array('+0800', '+0800');
 $tz_array['Etc/GMT-9'] = array('+0900', '+0900');
-$tz_array['Etc/GMT0'] = array('+0000', '+0000');
-$tz_array['Etc/Greenwich'] = array('+0000', '+0000');
-$tz_array['Etc/UCT'] = array('+0000', '+0000');
-$tz_array['Etc/UTC'] = array('+0000', '+0000');
-$tz_array['Etc/Universal'] = array('+0000', '+0000');
-$tz_array['Etc/Zulu'] = array('+0000', '+0000');
 $tz_array['Europe/Amsterdam'] = array('+0100', '+0200');
 $tz_array['Europe/Andorra'] = array('+0100', '+0200');
 $tz_array['Europe/Athens'] = array('+0200', '+0300');
@@ -417,17 +378,10 @@ $tz_array['Europe/Warsaw'] = array('+0100', '+0200');
 $tz_array['Europe/Zagreb'] = array('+0100', '+0200');
 $tz_array['Europe/Zaporozhye'] = array('+0200', '+0300');
 $tz_array['Europe/Zurich'] = array('+0100', '+0200');
-$tz_array['Factory'] = array('+0000', '+0000');
 $tz_array['GB'] = array('+0000', '+0100');
 $tz_array['GB-Eire'] = array('+0000', '+0100');
-$tz_array['GMT'] = array('+0000', '+0000');
-$tz_array['GMT+0'] = array('+0000', '+0000');
-$tz_array['GMT-0'] = array('+0000', '+0000');
-$tz_array['GMT0'] = array('+0000', '+0000');
-$tz_array['Greenwich'] = array('+0000', '+0000');
 $tz_array['HST'] = array('-1000', '-1000');
 $tz_array['Hongkong'] = array('+0800', '+0800');
-$tz_array['Iceland'] = array('+0000', '+0000');
 $tz_array['Indian/Antananarivo'] = array('+0300', '+0300');
 $tz_array['Indian/Chagos'] = array('+0500', '+0500');
 $tz_array['Indian/Christmas'] = array('+0700', '+0700');
@@ -518,7 +472,6 @@ $tz_array['SystemV/PST8PDT'] = array('-0800', '-0700');
 $tz_array['SystemV/YST9'] = array('-0900', '-0900');
 $tz_array['SystemV/YST9YDT'] = array('-0900', '-0800');
 $tz_array['Turkey'] = array('+0200', '+0300');
-$tz_array['UCT'] = array('+0000', '+0000');
 $tz_array['US/Alaska'] = array('-0900', '-0800');
 $tz_array['US/Aleutian'] = array('-1000', '-0900');
 $tz_array['US/Arizona'] = array('-0700', '-0700');
@@ -531,9 +484,6 @@ $tz_array['US/Michigan'] = array('-0500', '-0400');
 $tz_array['US/Mountain'] = array('-0700', '-0600');
 $tz_array['US/Pacific'] = array('-0800', '-0700');
 $tz_array['US/Samoa'] = array('-1100', '-1100');
-$tz_array['UTC'] = array('+0000', '+0000');
-$tz_array['Universal'] = array('+0000', '+0000');
 $tz_array['W-SU'] = array('+0300', '+0400');
 $tz_array['WET'] = array('+0000', '+0100');
-$tz_array['Zulu'] = array('+0000', '+0000');
 ?>
\ No newline at end of file