Columbus時間
19:59:33
日出: 07:38:02 
日落: 18:06:3408:59:33
03:59:33
21:59:33
06:29:33
18:59:33
08:59:33
05:59:33
08:59:33
08:59:33
06:29:33
03:59:33
08:59:33
06:59:33
09:59:33
21:59:33
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