Columbus時間
03:58:00
日出: 07:03:26 
日落: 18:39:4316:58:00
11:58:00
05:58:00
14:28:00
02:58:00
16:58:00
13:58:00
16:58:00
16:58:00
14:28:00
11:58:00
16:58:00
14:58:00
17:58:00
05:58:00
Columbus與主要城市的時差
+7
+7
+7
+7
+6
+6
+6
+6
+6
+6
+5
+5
+5
+2
+2
+2
+2
+1
+0
+0
+0
-1
-3