Columbus時間
16:09:53
日出: 07:38:31 
日落: 18:05:3805:09:53
00:09:53
18:09:53
02:39:53
15:09:53
05:09:53
02:09:53
05:09:53
05:09:53
02:39:53
00:09:53
05:09:53
03:09:53
06:09:53
18:09:53
Columbus與主要城市的時差
+7
+7
+7
+7
+6
+6
+6
+6
+6
+6
+6
+5
+5
+2
+2
+2
+2
+1
+0
+0
+0
-1
-3