Ōkawa時間
11:24:35
日出: 06:50:22 
日落: 18:12:2710:24:35
05:24:35
23:24:35
07:54:35
20:24:35
10:24:35
07:24:35
10:24:35
10:24:35
07:54:35
05:24:35
10:24:35
08:24:35
11:24:35
23:24:35
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