Grantham時間
02:46:20
日出: 06:49:03 
日落: 17:40:4110:46:20
05:46:20
23:46:20
08:16:20
20:46:20
10:46:20
07:46:20
10:46:20
10:46:20
08:16:20
05:46:20
10:46:20
08:46:20
11:46:20
23:46:20
Grantham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