Porto時間
10:34:48
日出: 07:56:55 
日落: 17:31:2818:34:49
13:34:49
07:34:49
16:04:49
04:34:49
18:34:49
15:34:49
18:34:49
18:34:49
16:04:49
13:34:49
18:34:49
16:34:49
19:34:49
07:34:49
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