Porto時間
21:36:30
日出: 07:08:26 
日落: 18:25:0205:36:30
00:36:30
18:36:30
03:06:30
15:36:30
05:36:30
02:36:30
05:36:30
05:36:30
03:06:30
00:36:30
05:36:30
03:36:30
06:36:30
18:36:30
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