Ōkawa時間
23:47:31
日出: 06:51:31 
日落: 18:11:3622:47:31
17:47:31
11:47:31
20:17:31
08:47:31
22:47:31
19:47:31
22:47:31
22:47:31
20:17:31
17:47:31
22:47:31
20:47:31
23:47:31
11:47:31
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
-9
-9
-9
-12
-12
-12
-12