Heure à Hertford
14:30:11
Lever du soleil: 06:43:10 
Coucher de soleil: 17:41:3922:30:11
17:30:11
11:30:11
20:00:11
08:30:11
22:30:11
19:30:11
22:30:11
22:30:11
20:00:11
17:30:11
22:30:11
20:30:11
23:30:11
11:30:11
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