Pottstown時間
10:31:47
日出: 07:23:21 
日落: 17:00:0523:31:47
18:31:47
12:31:47
21:01:47
09:31:47
23:31:47
20:31:47
23:31:47
23:31:47
21:01:47
18:31:47
23:31:47
21:31:47
00:31:47
12:31:47
Pottstown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