Heure à Hertford
18:36:40
Lever du soleil: 07:56:20 
Coucher de soleil: 16:25:4202:36:40
21:36:40
15:36:40
00:06:40
12:36:40
02:36:40
23:36:40
02:36:40
02:36:40
00:06:40
21:36:40
02:36:40
00:36:40
03:36:40
15:36:40
Décalage horaire entre Hertford et les grandes villes
+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