Columbus時間
17:39:20
日出: 07:52:19 
日落: 17:29:1206:39:20
01:39:20
19:39:20
04:09:20
16:39:20
06:39:20
03:39:20
06:39:20
06:39:20
04:09:20
01:39:20
06:39:20
04:39:20
07:39:20
19:39:20
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