Columbus時間
20:17:49
日出: 06:03:01 
日落: 20:59:2508:17:49
03:17:49
21:17:49
05:47:49
18:17:49
08:17:49
05:17:49
08:17:49
08:17:49
05:47:49
03:17:49
08:17:49
06:17:49
09:17:49
21:17:49
Columbus與主要城市的時差
+7
+7
+7
+7
+7
+7
+7
+7
+7
+6
+6
+6
+6
+5
+5
+5
+5
+5
+5
+4
+1
+1
+1
+0
+0
+0
-1
-1
-2
-3