Ōkawa時間
00:04:40
日出: 07:22:14 
日落: 17:31:5123:04:40
18:04:40
12:04:40
20:34:40
09:04:40
23:04:40
20:04:40
23:04:40
23:04:40
20:34:40
18:04:40
23:04:40
21:04:40
00:04:40
12:04:40
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