Columbus時間
01:39:45
日出: 07:04:39 
日落: 18:38:5614:39:45
09:39:45
03:39:45
12:09:45
00:39:45
14:39:45
11:39:45
14:39:45
14:39:45
12:09:45
09:39:45
14:39:45
12:39:45
15:39:45
03:39:45
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