Porto時間
10:29:42
日出: 07:08:26 
日落: 18:25:0218:29:42
13:29:42
07:29:42
15:59:42
04:29:42
18:29:42
15:29:42
18:29:42
18:29:42
15:59:42
13:29:42
18:29:42
16:29:42
19:29:42
07:29:42
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