Columbus時間
00:46:58
日出: 07:04:41 
日落: 18:23:4913:46:58
08:46:58
02:46:58
11:16:58
23:46:58
13:46:58
10:46:58
13:46:58
13:46:58
11:16:58
08:46:58
13:46:58
11:46:58
14:46:58
02:46:58
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