Columbus時間
16:58:42
日出: 07:39:47 
日落: 18:02:4905:58:42
00:58:42
18:58:42
03:28:42
15:58:42
05:58:42
02:58:42
05:58:42
05:58:42
03:28:42
00:58:42
05:58:42
03:58:42
06:58:42
18:58:42
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