Columbus時間
09:47:40
日出: 07:51:58 
日落: 17:30:1622:47:40
17:47:40
11:47:40
20:17:40
08:47:40
22:47:40
19:47:40
22:47:40
22:47:40
20:17:40
17:47:40
22:47:40
20:47:40
23:47:40
11:47:40
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