Purley時間
23:30:20
日出: 06:47:03 
日落: 17:38:4907:30:20
02:30:20
20:30:20
05:00:20
17:30:20
07:30:20
04:30:20
07:30:20
07:30:20
05:00:20
02:30:20
07:30:20
05:30:20
08:30:20
20:30:20
Purley與主要城市的時差
+7
+7
+7
+6.5
+6
+6
+6
+6
+5.5
+5.5
+5.5
+5.5
+5.5
+5.5
+5.5
+5.5
+5.5
+5.5
+5
+5
+4.5
+4
+3.5
+3
+3
+3
+3
+3
+3
+3
+2
+2
+2
+2
+1
+1
+1
+1
+1
+1
+0
+0
+0
-3
-3
-3
-3
-4
-5
-5
-5
-6
-8