Ōkawa時間
18:31:06
日出: 07:21:24 
日落: 17:35:3117:31:06
12:31:06
06:31:06
15:01:06
03:31:06
17:31:06
14:31:06
17:31:06
17:31:06
15:01:06
12:31:06
17:31:06
15:31:06
18:31:06
06:31:06
Ōkawa與主要城市的時差
+2
+2
+0
+0
+0
+0
+0
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-2
-2
-2
-3
-3
-3
-3
-4
-4
-5
-6
-6
-6
-6
-6
-6
-6
-7
-7
-7
-7
-8
-8
-8
-8
-8
-8
-8
-9
-9
-12
-12
-12
-12