Heure à Hertford
02:07:23
Lever du soleil: 07:55:15 
Coucher de soleil: 16:27:2310:07:23
05:07:23
23:07:23
07:37:23
20:07:23
10:07:23
07:07:23
10:07:23
10:07:23
07:37:23
05:07:23
10:07:23
08:07:23
11:07:23
23:07:23
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