Heure à Hertford
22:00:36
Lever du soleil: 06:43:10 
Coucher de soleil: 17:41:3906:00:36
01:00:36
19:00:36
03:30:36
16:00:36
06:00:36
03:00:36
06:00:36
06:00:36
03:30:36
01:00:36
06:00:36
04:00:36
07:00:36
19:00:36
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
+0
+0
+0
-3
-3
-3
-3
-4
-5
-5
-5
-6
-8