Columbus時間
22:59:59
日出: 07:10:34 
日落: 18:19:2211:59:59
06:59:59
00:59:59
09:29:59
21:59:59
11:59:59
08:59:59
11:59:59
11:59:59
09:29:59
06:59:59
11:59:59
09:59:59
12:59:59
00:59:59
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