Royston時間
02:40:47
日出: 07:06:43 
日落: 17:21:0310:40:47
05:40:47
23:40:47
08:10:47
20:40:47
10:40:47
07:40:47
10:40:47
10:40:47
08:10:47
05:40:47
10:40:47
08:40:47
11:40:47
23:40:47
Royston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