From 7d565474b41400bfce2d665da96d39631458eda3 Mon Sep 17 00:00:00 2001
From: Jim Hu <jimhu@users.sourceforge.net>
Date: Fri, 26 Dec 2008 05:54:46 +0000
Subject: fix US holidays; fix 1743686 where byday set and timezone pushes
 event to different day

---
 functions/is_daylight.php | 538 +++++++++++++++++++++++-----------------------
 1 file changed, 271 insertions(+), 267 deletions(-)

(limited to 'functions/is_daylight.php')

diff --git a/functions/is_daylight.php b/functions/is_daylight.php
index c6f79ef..60910ff 100644
--- a/functions/is_daylight.php
+++ b/functions/is_daylight.php
@@ -12,279 +12,283 @@ function is_daylight($time, $timezone){
 	$month = date("m",$time);
 	$day = date("d",$time);
 	$hour = date("H",$time);
-	switch ($timezone){
-		case 'US/Samoa':                     # array('-1100', '-1100');
-		case 'America/Adak':                 # array('-1000', '-0900');
-		case 'America/Atka':    
-		case 'US/Aleutian':
-		case 'America/Anchorage':      	     # array('-0900', '-0800');
-		case 'America/Nome':      
-		case 'US/Alaska':        
-		case 'America/Juneau':   
-		case 'America/Yakutat':  
-		case 'America/Dawson':               # array('-0800', '-0700');
-		case 'America/Los_Angeles':
-		case 'America/Vancouver': 
-		case 'America/Whitehorse':
-		case 'Canada/Pacific':   
-		case 'Canada/Yukon':     
-		case 'PST8PDT':          
-		case 'US/Pacific':
-		case 'America/Boise': 	    		# array('-0700', '-0600');
-		case 'America/Cambridge_Bay':   
-		case 'America/Denver':          
-		case 'America/Edmonton':        
-		case 'America/Inuvik':          
-		case 'America/Shiprock':        
-		case 'America/Yellowknife':     
-		case 'Canada/Mountain':         
-		case 'MST7MDT':                 
-		case 'Navajo':                  
-		case 'US/Mountain':             	
-		case 'America/Chicago':       		# array('-0600', '-0500');     
-		case 'America/Menominee':       
-		case 'America/Merida':          
-		case 'America/Rainy_River':     
-		case 'America/Rankin_Inlet':    
-		case 'America/Winnipeg':        
-		case 'Canada/Central':          
-		case 'CST6CDT':                 
-		case 'US/Central':              
-		case 'America/Detroit':              # array('-0500', '-0400');
-		case 'America/Grand_Turk':      
-		case 'America/Iqaluit':         
-		case 'America/Kentucky/Louisville':
-		case 'America/Kentucky/Monticello':
-		case 'America/Louisville':      
-		case 'America/Montreal':       
-		case 'America/Nassau':         
-		case 'America/New_York':       
-		case 'America/Nipigon':        
-		case 'America/Pangnirtung':    
-		case 'America/Thunder_Bay':    
-		case 'Canada/Eastern':         
-		case 'EST5EDT':                
-		case 'US/Eastern':
-		case 'US/Michigan':
-		case 'America/Glace_Bay':            # array('-0400', '-0300');
-		case 'America/Goose_Bay':    
-		case 'America/Halifax':    
-		case 'America/Thule':      
-		case 'Canada/Atlantic':    
-		case 'America/St_Johns':             # array('-0330', '-0230');
-		case 'Canada/Newfoundland':
-		case 'America/Godthab':              # array('-0300', '-0200');
-		case 'America/Miquelon':   
-			if ($year < 2007){
+	
+	if(isset($tz_array[$timezone]['dt_start'][$year]) && isset($tz_array[$timezone]['st_start'][$year])){
+		$start	= $tz_array[$timezone]['dt_start'][$year];
+		$end 	= $tz_array[$timezone]['st_start'][$year];	
+	}else{
+		switch ($timezone){
+			case 'US/Samoa':                     # array('-1100', '-1100');
+			case 'America/Adak':                 # array('-1000', '-0900');
+			case 'America/Atka':    
+			case 'US/Aleutian':
+			case 'America/Anchorage':      	     # array('-0900', '-0800');
+			case 'America/Nome':      
+			case 'US/Alaska':        
+			case 'America/Juneau':   
+			case 'America/Yakutat':  
+			case 'America/Dawson':               # array('-0800', '-0700');
+			case 'America/Los_Angeles':
+			case 'America/Vancouver': 
+			case 'America/Whitehorse':
+			case 'Canada/Pacific':   
+			case 'Canada/Yukon':     
+			case 'PST8PDT':          
+			case 'US/Pacific':
+			case 'America/Boise': 	    		# array('-0700', '-0600');
+			case 'America/Cambridge_Bay':   
+			case 'America/Denver':          
+			case 'America/Edmonton':        
+			case 'America/Inuvik':          
+			case 'America/Shiprock':        
+			case 'America/Yellowknife':     
+			case 'Canada/Mountain':         
+			case 'MST7MDT':                 
+			case 'Navajo':                  
+			case 'US/Mountain':             	
+			case 'America/Chicago':       		# array('-0600', '-0500');     
+			case 'America/Menominee':       
+			case 'America/Merida':          
+			case 'America/Rainy_River':     
+			case 'America/Rankin_Inlet':    
+			case 'America/Winnipeg':        
+			case 'Canada/Central':          
+			case 'CST6CDT':                 
+			case 'US/Central':              
+			case 'America/Detroit':              # array('-0500', '-0400');
+			case 'America/Grand_Turk':      
+			case 'America/Iqaluit':         
+			case 'America/Kentucky/Louisville':
+			case 'America/Kentucky/Monticello':
+			case 'America/Louisville':      
+			case 'America/Montreal':       
+			case 'America/Nassau':         
+			case 'America/New_York':       
+			case 'America/Nipigon':        
+			case 'America/Pangnirtung':    
+			case 'America/Thunder_Bay':    
+			case 'Canada/Eastern':         
+			case 'EST5EDT':                
+			case 'US/Eastern':
+			case 'US/Michigan':
+			case 'America/Glace_Bay':            # array('-0400', '-0300');
+			case 'America/Goose_Bay':    
+			case 'America/Halifax':    
+			case 'America/Thule':      
+			case 'Canada/Atlantic':    
+			case 'America/St_Johns':             # array('-0330', '-0230');
+			case 'Canada/Newfoundland':
+			case 'America/Godthab':              # array('-0300', '-0200');
+			case 'America/Miquelon':   
+				if ($year < 2007){
+					$start 	= strtotime("+1 Sun",strtotime($year."0331"));
+					$end 	= strtotime("-1 Sun",strtotime($year."1101"));
+				}else{
+					$start 	= strtotime("+2 Sun",strtotime($year."0300"));
+					$end 	= strtotime("+1 Sun",strtotime($year."1031"));
+				}
+				break;
+			case 'America/Havana':          
+			case 'Cuba':                   
+				$start 	= strtotime("+3 Sun",strtotime($year."0300"));
+				$end 	= strtotime("-1 Sun",strtotime($year."1101"));	
+				break;
+			case 'America/Cancun':     
+			case 'America/Chihuahua':       
+			case 'America/Ensenada':   
+			case 'America/Tijuana':   
+			case 'America/Mexico_City':     
+			case 'America/Monterrey':       
+			case 'Atlantic/Bermuda':   
+			case 'Mexico/BajaSur':          
+			case 'Mexico/BajaNorte': 
+			case 'Mexico/General':          
+			case 'America/Mazatlan':        
 				$start 	= strtotime("+1 Sun",strtotime($year."0331"));
 				$end 	= strtotime("-1 Sun",strtotime($year."1101"));
-			}else{
-				$start 	= strtotime("+2 Sun",strtotime($year."0300"));
-				$end 	= strtotime("+1 Sun",strtotime($year."1031"));
-			}
-			break;
-		case 'America/Havana':          
-		case 'Cuba':                   
-			$start 	= strtotime("+3 Sun",strtotime($year."0300"));
-			$end 	= strtotime("-1 Sun",strtotime($year."1101"));	
-			break;
-		case 'America/Cancun':     
-		case 'America/Chihuahua':       
-		case 'America/Ensenada':   
-		case 'America/Tijuana':   
-		case 'America/Mexico_City':     
-		case 'America/Monterrey':       
-		case 'Atlantic/Bermuda':   
-		case 'Mexico/BajaSur':          
-		case 'Mexico/BajaNorte': 
-		case 'Mexico/General':          
-		case 'America/Mazatlan':        
-			$start 	= strtotime("+1 Sun",strtotime($year."0331"));
-			$end 	= strtotime("-1 Sun",strtotime($year."1101"));
-			break;
-		case 'Chile/EasterIsland':           # array('-0500', '-0600');
-		case 'Pacific/Easter':        
-	
-			break;
-		case 'America/Asuncion':        	 # array('-0300', '-0400');
-		case 'America/Cuiaba':      
-		case 'America/Santiago':    
-		case 'Antarctica/Palmer':   
-		case 'Atlantic/Stanley':    
-		case 'Chile/Continental':   
-	
-			break;
-		case 'America/Araguaina':       	 # array('-0200', '-0300');
-		case 'America/Sao_Paulo':  
-		case 'Brazil/East':        
-	
-			break;
-		case 'America/Scoresbysund':         # array('-0100', '+0000');
-		case 'Atlantic/Azores':    
-	
-			break;
-		case 'Atlantic/Canary':              # array('+0000', '+0100');
-		case 'Atlantic/Faeroe':    
-		case 'Atlantic/Madeira':   
-		case 'Eire':
-		case 'Europe/Belfast':     
-		case 'Europe/Dublin':      
-		case 'Europe/Lisbon':      
-		case 'Europe/London':      
-		case 'GB-Eire':            
-		case 'GB':                 
-		case 'Portugal':           
-		case 'WET':                
-	
-			break;
-		case 'Africa/Ceuta': 	             # array('+0100', '+0200'); 
-		case 'Arctic/Longyearbyen':
-		case 'CET':                 
-		case 'Europe/Amsterdam':    
-		case 'Europe/Andorra':      
-		case 'Europe/Belgrade':     
-		case 'Europe/Berlin':       
-		case 'Europe/Bratislava':   
-		case 'Europe/Brussels':     
-		case 'Europe/Budapest':     
-		case 'Europe/Copenhagen':   
-		case 'Europe/Gibraltar':    
-		case 'Europe/Ljubljana':    
-		case 'Europe/Luxembourg':   
-		case 'Europe/Madrid':       
-		case 'Europe/Malta':        
-		case 'Europe/Monaco':       
-		case 'Europe/Oslo':         
-		case 'Europe/Paris':        
-		case 'Europe/Prague':       
-		case 'Europe/Rome':         
-		case 'Europe/San_Marino':   
-		case 'Europe/Sarajevo':     
-		case 'Europe/Skopje':       
-		case 'Europe/Stockholm':    
-		case 'Europe/Tirane':       
-		case 'Europe/Vaduz':        
-		case 'Europe/Vatican':      
-		case 'Europe/Vienna':       
-		case 'Europe/Warsaw':       
-		case 'Europe/Zagreb':         
-		case 'Europe/Zurich':         
-		case 'MET':                   
-		case 'Poland':                
-			$start 	= strtotime("-1 Sun",strtotime($year."0401"));
-			$end 	= strtotime("-1 Sun",strtotime($year."1101"));	
-			break;
-		case 'Africa/Windhoek':       	     # array('+0200', '+0100');
-	
-			break;
-		case 'Asia/Amman':                   # array('+0200', '+0300');
-		case 'Asia/Beirut':          
-		case 'Asia/Damascus':     
-		case 'Asia/Gaza':         
-		case 'Asia/Istanbul':        
-		case 'Asia/Jerusalem':       
-		case 'Asia/Nicosia':      
-		case 'Asia/Tel_Aviv':     
-		case 'EET':               
-		case 'Egypt':             
-		case 'Europe/Athens':     
-		case 'Europe/Bucharest':  
-		case 'Europe/Chisinau':   
-		case 'Europe/Helsinki':   
-		case 'Europe/Istanbul':   
-		case 'Europe/Kaliningrad':
-		case 'Europe/Kiev':       
-		case 'Europe/Minsk':      
-		case 'Europe/Nicosia':    
-		case 'Europe/Riga':       
-		case 'Europe/Simferopol': 
-		case 'Europe/Sofia':      
-		case 'Europe/Tiraspol':   
-		case 'Europe/Uzhgorod':   
-		case 'Europe/Zaporozhye': 
-		case 'Israel':            
-		case 'Turkey':            
-	
-			break;
-		case 'Asia/Baghdad':                 # array('+0300', '+0400');
-		case 'Europe/Moscow':
-		case 'W-SU':                 
-	
-			break;
-		case 'Asia/Tehran':                  # array('+0330', '+0430');
-		case 'Iran':       
-	
-			break;
-		case 'Asia/Aqtau':                   # array('+0400', '+0500');
-		case 'Asia/Baku':            
-		case 'Asia/Tbilisi':         
-		case 'Asia/Yerevan':         
-		case 'Europe/Samara':
-	
-			break;
-		case 'Asia/Aqtobe':                  # array('+0500', '+0600');
-		case 'Asia/Bishkek':         
-		case 'Asia/Yekaterinburg':   
-	
-			break;
-		case 'Asia/Almaty':                  # array('+0600', '+0700');
-		case 'Asia/Novosibirsk':     
-		case 'Asia/Omsk':            
-	
-			break;
-		case 'Asia/Krasnoyarsk':             # array('+0700', '+0800');
-	
-			break;
-		case 'Asia/Irkutsk':                 # array('+0800', '+0900');
-	
-			break;
-		case 'Asia/Yakutsk':                 # array('+0900', '+1000');
+				break;
+			case 'Chile/EasterIsland':           # array('-0500', '-0600');
+			case 'Pacific/Easter':        
 		
+				break;
+			case 'America/Asuncion':        	 # array('-0300', '-0400');
+			case 'America/Cuiaba':      
+			case 'America/Santiago':    
+			case 'Antarctica/Palmer':   
+			case 'Atlantic/Stanley':    
+			case 'Chile/Continental':   
 		
-			break;
-		case 'Asia/Vladivostok':             # array('+1000', '+1100');
-		case 'Australia/ACT':        
-		case 'Australia/Melbourne':  
-		case 'Australia/NSW':        
-		case 'Australia/Sydney':     
-		case 'Australia/Tasmania':   
-		case 'Australia/Victoria':   
-	
-			break;
-		case 'Australia/Adelaide':           # array('+1030', '+0930');
-		case 'Australia/Broken_Hill':
-		case 'Australia/South':      
-		case 'Australia/Yancowinna': 
-	
-			break;
-		case 'Asia/Magadan':                 # array('+1100', '+1200');
-	
-			break;
-		case 'Australia/LHI':                # array('+1100', '+1030');
-		case 'Australia/Lord_Howe':  
-	
-			break;
-		case 'Australia/Canberra':           # array('+1100', '+1000');
-		case 'Australia/Hobart':     
-	
-			break;
-		case 'Asia/Anadyr':                  # array('+1200', '+1300');
-		case 'Asia/Kamchatka':       
-	
-			break;
-		case 'Antarctica/McMurdo':
-		case 'Antarctica/South_Pole':
-		case 'NZ':                           # array('+1300', '+1200');
-		case 'Pacific/Auckland':  
-			break;	
-		case 'NZ-CHAT':           
-		case 'Pacific/Chatham':              # array('+1345', '+1245');
-			break;
-		default:
-			$dlst = date('I', $time);
+				break;
+			case 'America/Araguaina':       	 # array('-0200', '-0300');
+			case 'America/Sao_Paulo':  
+			case 'Brazil/East':        
+		
+				break;
+			case 'America/Scoresbysund':         # array('-0100', '+0000');
+			case 'Atlantic/Azores':    
+		
+				break;
+			case 'Atlantic/Canary':              # array('+0000', '+0100');
+			case 'Atlantic/Faeroe':    
+			case 'Atlantic/Madeira':   
+			case 'Eire':
+			case 'Europe/Belfast':     
+			case 'Europe/Dublin':      
+			case 'Europe/Lisbon':      
+			case 'Europe/London':      
+			case 'GB-Eire':            
+			case 'GB':                 
+			case 'Portugal':           
+			case 'WET':                
+			case 'Africa/Ceuta': 	             # array('+0100', '+0200'); 
+			case 'Arctic/Longyearbyen':
+			case 'CET':                 
+			case 'Europe/Amsterdam':    
+			case 'Europe/Andorra':      
+			case 'Europe/Belgrade':     
+			case 'Europe/Berlin':       
+			case 'Europe/Bratislava':   
+			case 'Europe/Brussels':     
+			case 'Europe/Budapest':     
+			case 'Europe/Copenhagen':   
+			case 'Europe/Gibraltar':    
+			case 'Europe/Ljubljana':    
+			case 'Europe/Luxembourg':   
+			case 'Europe/Madrid':       
+			case 'Europe/Malta':        
+			case 'Europe/Monaco':       
+			case 'Europe/Oslo':         
+			case 'Europe/Paris':        
+			case 'Europe/Prague':       
+			case 'Europe/Rome':         
+			case 'Europe/San_Marino':   
+			case 'Europe/Sarajevo':     
+			case 'Europe/Skopje':       
+			case 'Europe/Stockholm':    
+			case 'Europe/Tirane':       
+			case 'Europe/Vaduz':        
+			case 'Europe/Vatican':      
+			case 'Europe/Vienna':       
+			case 'Europe/Warsaw':       
+			case 'Europe/Zagreb':         
+			case 'Europe/Zurich':         
+			case 'MET':                   
+			case 'Poland':                
+			case 'Europe/Athens':     
+			case 'Europe/Bucharest':  
+			case 'Europe/Chisinau':   
+			case 'Europe/Helsinki':   
+			case 'Europe/Istanbul':   
+			case 'Europe/Kaliningrad':
+			case 'Europe/Kiev':       
+			case 'Europe/Minsk':      
+			case 'Europe/Nicosia':    
+			case 'Europe/Riga':       
+			case 'Europe/Simferopol': 
+			case 'Europe/Sofia':      
+			case 'Europe/Tiraspol':   
+			case 'Europe/Uzhgorod':   
+			case 'Europe/Zaporozhye': 
+			case 'EET':               
+				$start 	= strtotime("-1 Sun",strtotime($year."0401"));
+				$end 	= strtotime("-1 Sun",strtotime($year."1101"));	
+				break;
+			case 'Africa/Windhoek':       	     # array('+0200', '+0100');
+		
+				break;
+			case 'Asia/Amman':                   # array('+0200', '+0300');
+			case 'Asia/Beirut':          
+			case 'Asia/Damascus':     
+			case 'Asia/Gaza':         
+			case 'Asia/Istanbul':        
+			case 'Asia/Jerusalem':       
+			case 'Asia/Nicosia':      
+			case 'Asia/Tel_Aviv':     
+			case 'Egypt':             
+			case 'Israel':            
+			case 'Turkey':            
+		
+				break;
+			case 'Asia/Baghdad':                 # array('+0300', '+0400');
+			case 'Europe/Moscow':
+			case 'W-SU':                 
+		
+				break;
+			case 'Asia/Tehran':                  # array('+0330', '+0430');
+			case 'Iran':       
+		
+				break;
+			case 'Asia/Aqtau':                   # array('+0400', '+0500');
+			case 'Asia/Baku':            
+			case 'Asia/Tbilisi':         
+			case 'Asia/Yerevan':         
+			case 'Europe/Samara':
+		
+				break;
+			case 'Asia/Aqtobe':                  # array('+0500', '+0600');
+			case 'Asia/Bishkek':         
+			case 'Asia/Yekaterinburg':   
+		
+				break;
+			case 'Asia/Almaty':                  # array('+0600', '+0700');
+			case 'Asia/Novosibirsk':     
+			case 'Asia/Omsk':            
+		
+				break;
+			case 'Asia/Krasnoyarsk':             # array('+0700', '+0800');
+		
+				break;
+			case 'Asia/Irkutsk':                 # array('+0800', '+0900');
+		
+				break;
+			case 'Asia/Yakutsk':                 # array('+0900', '+1000');
+			
+			
+				break;
+			case 'Asia/Vladivostok':             # array('+1000', '+1100');
+			case 'Australia/ACT':        
+			case 'Australia/Melbourne':  
+			case 'Australia/NSW':        
+			case 'Australia/Sydney':     
+			case 'Australia/Tasmania':   
+			case 'Australia/Victoria':   
+		
+				break;
+			case 'Australia/Adelaide':           # array('+1030', '+0930');
+			case 'Australia/Broken_Hill':
+			case 'Australia/South':      
+			case 'Australia/Yancowinna': 
+		
+				break;
+			case 'Asia/Magadan':                 # array('+1100', '+1200');
+		
+				break;
+			case 'Australia/LHI':                # array('+1100', '+1030');
+			case 'Australia/Lord_Howe':  
+		
+				break;
+			case 'Australia/Canberra':           # array('+1100', '+1000');
+			case 'Australia/Hobart':     
+		
+				break;
+			case 'Asia/Anadyr':                  # array('+1200', '+1300');
+			case 'Asia/Kamchatka':       
+		
+				break;
+			case 'Antarctica/McMurdo':
+			case 'Antarctica/South_Pole':
+			case 'NZ':                           # array('+1300', '+1200');
+			case 'Pacific/Auckland':  
+				break;	
+			case 'NZ-CHAT':           
+			case 'Pacific/Chatham':              # array('+1345', '+1245');
+				break;
+			default:
+				$dlst = date('I', $time);
+		}
 	}
 	if (isset($start,$end) && $time >= $start && $time < $end) $dlst = 1;
-	echo "$summary $dlst <br>";
+	#echo "$summary $dlst <br>";
 
 	return $dlst;
 
-- 
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