Portoの時間
17:31:42
日の出: 07:59:47 
日没: 17:17:1101:31:42
20:31:42
14:31:42
23:01:42
11:31:42
01:31:42
22:31:42
01:31:42
01:31:42
23:01:42
20:31:42
01:31:42
23:31:42
02:31:42
14:31:42
Portoと主要都市の時差
+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