Columbus時間
05:07:53
日出: 07:57:16 
日落: 19:43:3017:07:53
12:07:53
06:07:53
14:37:53
03:07:53
17:07:53
14:07:53
17:07:53
17:07:53
14:37:53
12:07:53
17:07:53
15:07:53
18:07:53
06:07:53
Columbus與主要城市的時差
+7
+7
+7
+7
+7
+7
+7
+6
+6
+6
+6
+5
+5
+5
+5
+5
+5
+4
+4
+4
+1
+1
+1
+1
+0
+0
-1
-1
-2
-3