Columbus時間
23:51:00
日出: 06:32:12 
日落: 20:26:0311:51:00
06:51:00
00:51:00
09:21:00
21:51:00
11:51:00
08:51:00
11:51:00
11:51:00
09:21:00
06:51:00
11:51:00
09:51:00
12:51:00
00:51:00
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