Porto時間
02:59:11
日出: 07:54:46 
日落: 17:36:0910:59:11
05:59:11
23:59:11
08:29:11
20:59:11
10:59:11
07:59:11
10:59:11
10:59:11
08:29:11
05:59:11
10:59:11
08:59:11
11:59:11
23:59:11
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