West Chester時間
06:31:53
日出: 07:05:04 
日落: 17:27:5519:31:53
14:31:53
08:31:53
17:01:53
05:31:53
19:31:53
16:31:53
19:31:53
19:31:53
17:01:53
14:31:53
19:31:53
17:31:53
20:31:53
08:31:53
West Chester與主要城市的時差
06:31:53
0
06:31:53
+7
+7
+7
+7
+6
+6
+6
+6
+6
+6
+6
+5
+5
+2
+2
+2
+2
+1
+0
+0
+0
-1
-3