Porto時間
19:42:59
日出: 07:56:26 
日落: 17:32:3703:42:59
22:42:59
16:42:59
01:12:59
13:42:59
03:42:59
00:42:59
03:42:59
03:42:59
01:12:59
22:42:59
03:42:59
01:42:59
04:42:59
16:42:59
Porto與主要城市的時差
+7
+7
+7
+6.5
+6
+6
+6
+6
+5.5
+5.5
+5.5
+5.5
+5.5
+5.5
+5.5
+5.5
+5.5
+5.5
+5
+5
+4.5
+4
+3.5
+3
+3
+3
+3
+3
+3
+3
+2
+2
+2
+2
+1
+1
+1
+1
+1
+1
+1
+0
+0
-3
-3
-3
-3
-4
-5
-5
-5
-6
-8