Columbus時間
05:39:33
日出: 07:57:16 
日落: 19:43:3017:39:33
12:39:33
06:39:33
15:09:33
03:39:33
17:39:33
14:39:33
17:39:33
17:39:33
15:09:33
12:39:33
17:39:33
15:39:33
18:39:33
06:39:33
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