Porto時間
09:37:23
日出: 07:54:46 
日落: 17:36:0917:37:23
12:37:23
06:37:23
15:07:23
03:37:23
17:37:23
14:37:23
17:37:23
17:37:23
15:07:23
12:37:23
17:37:23
15:37:23
18:37:23
06:37:23
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