Porto時間
02:53:19
日出: 07:55:55 
日落: 17:33:4710:53:19
05:53:19
23:53:19
08:23:19
20:53:19
10:53:19
07:53:19
10:53:19
10:53:19
08:23:19
05:53:19
10:53:19
08:53:19
11:53:19
23:53:19
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