Columbus時間
07:22:48
日出: 07:51:35 
日落: 17:31:2220:22:48
15:22:48
09:22:48
17:52:48
06:22:48
20:22:48
17:22:48
20:22:48
20:22:48
17:52:48
15:22:48
20:22:48
18:22:48
21:22:48
09:22:48
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