Columbus時間
18:44:35
日出: 07:52:19 
日落: 17:29:1207:44:35
02:44:35
20:44:35
05:14:35
17:44:35
07:44:35
04:44:35
07:44:35
07:44:35
05:14:35
02:44:35
07:44:35
05:44:35
08:44:35
20:44:35
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