Hertford時間
03:30:04
日出: 07:43:41 
日落: 16:43:0811:30:04
06:30:04
00:30:04
09:00:04
21:30:04
11:30:04
08:30:04
11:30:04
11:30:04
09:00:04
06:30:04
11:30:04
09:30:04
12:30:04
00:30:04
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