Mount Vernon時間
19:30:20
日出: 06:36:24 
日落: 17:40:3308:30:20
03:30:20
21:30:20
06:00:20
18:30:20
08:30:20
05:30:20
08:30:20
08:30:20
06:00:20
03:30:20
08:30:20
06:30:20
09:30:20
21:30:20
Mount Vernon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