Ōkawa時間
18:36:36
日出: 07:22:14 
日落: 17:31:5117:36:36
12:36:36
06:36:36
15:06:36
03:36:36
17:36:36
14:36:36
17:36:36
17:36:36
15:06:36
12:36:36
17:36:36
15:36:36
18:36:36
06:36:36
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