Preston時間
00:30:21
日出: 07:00:45 
日落: 17:45:5108:30:21
03:30:21
21:30:21
06:00:21
18:30:21
08:30:21
05:30:21
08:30:21
08:30:21
06:00:21
03:30:21
08:30:21
06:30:21
09:30:21
21:30:21
Preston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