Columbus時間
08:37:54
日出: 07:04:39 
日落: 18:38:5621:37:54
16:37:54
10:37:54
19:07:54
07:37:54
21:37:54
18:37:54
21:37:54
21:37:54
19:07:54
16:37:54
21:37:54
19:37:54
22:37:54
10:37:54
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