Portoの時間
09:07:53
日の出: 06:05:21 
日没: 21:11:0916:07:53
11:07:53
05:07:53
13:37:53
02:07:53
16:07:53
13:07:53
16:07:53
16:07:53
13:37:53
11:07:53
16:07:53
14:07:53
17:07:53
05:07:53
Portoと主要都市の時差
09:07:53
-5
04:07:53
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+6
+6
+6
+5.5
+5
+5
+5
+5
+4.5
+4.5
+4.5
+4.5
+4.5
+4.5
+4.5
+4.5
+4.5
+4.5
+4
+4
+3.5
+3
+2.5
+2
+2
+2
+2
+2
+2
+2
+2
+2
+1
+1
+1
+1
+0
+0
+0
+0
+0
+0
-1
-4
-4
-4
-5
-5
-5
-6
-6
-7
-8