Porto時間
05:20:14
日出: 07:09:59 
日落: 18:23:5213:20:14
08:20:14
02:20:14
10:50:14
23:20:14
13:20:14
10:20:14
13:20:14
13:20:14
10:50:14
08:20:14
13:20:14
11:20:14
14:20:14
02:20:14
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
+0
+0
+0
-3
-3
-3
-3
-4
-5
-5
-5
-6
-8