Porto時間
14:30:45
日出: 07:55:55 
日落: 17:33:4722:30:45
17:30:45
11:30:45
20:00:45
08:30:45
22:30:45
19:30:45
22:30:45
22:30:45
20:00:45
17:30:45
22:30:45
20:30:45
23:30:45
11:30:45
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