Updated Timezone EUF. Use user-defined timezone as default date timezone, if it's possible.

e107_admin/prefs.php

@@ -773,37 +773,6 @@ $text .= "
 ";
 
 
-/**
- * Generate an array of time zones.
- */
-function systemTimeZones()
-{
-	$zonelist = timezone_identifiers_list();
-	$timeNow = date('m/d/Y H:i', $_SERVER['REQUEST_TIME']);
-
-	$zones = array();
-	foreach($zonelist as $zone)
-	{
-		// Because many time zones exist in PHP only for backward compatibility
-		// reasons and should not be used, the list is filtered by a regular
-		// expression.
-		if(preg_match('!^((Africa|America|Antarctica|Arctic|Asia|Atlantic|Australia|Europe|Indian|Pacific)/|UTC$)!', $zone))
-		{
-			$dateTimeZone = new DateTimeZone($zone);
-			$dateTime = new DateTime($timeNow, $dateTimeZone);
-			$offset = $dateTime->format('O');
-			$offset = chunk_split($offset, 3, ':');
-
-			$zones[$zone] = str_replace('_', ' ', $zone) . ' (' . rtrim($offset, ':') . ')';
-		}
-	}
-
-	// Sort time zones alphabetically.
-	asort($zones);
-	return $zones;
-}
-
-
 // =========== Registration Preferences. ==================