Hertford時間
02:38:03
日出: 07:43:41 
日落: 16:43:0810:38:03
05:38:03
23:38:03
08:08:03
20:38:03
10:38:03
07:38:03
10:38:03
10:38:03
08:08:03
05:38:03
10:38:03
08:38:03
11:38:03
23:38:03
Hertford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
+1
+0
+0
-3
-3
-3
-3
-4
-5
-5
-5
-6
-8