Porto時間
23:09:37
日出: 07:46:21 
日落: 17:05:3907:09:37
02:09:37
20:09:37
04:39:37
17:09:37
07:09:37
04:09:37
07:09:37
07:09:37
04:39:37
02:09:37
07:09:37
05:09:37
08:09:37
20:09:37
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