Columbus時間
11:21:52
日出: 07:39:47 
日落: 18:02:4900:21:52
19:21:52
13:21:52
21:51:52
10:21:52
00:21:52
21:21:52
00:21:52
00:21:52
21:51:52
19:21:52
00:21:52
22:21:52
01:21:52
13:21:52
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