Porto時間
07:27:43
日出: 07:55:21 
日落: 17:34:5815:27:43
10:27:43
04:27:43
12:57:43
01:27:43
15:27:43
12:27:43
15:27:43
15:27:43
12:57:43
10:27:43
15:27:43
13:27:43
16:27:43
04:27:43
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