Columbus時間
23:11:58
日出: 07:10:34 
日落: 18:19:2212:11:58
07:11:58
01:11:58
09:41:58
22:11:58
12:11:58
09:11:58
12:11:58
12:11:58
09:41:58
07:11:58
12:11:58
10:11:58
13:11:58
01:11:58
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