Heure à Hertford
00:20:17
Lever du soleil: 06:40:59 
Coucher de soleil: 17:43:2608:20:17
03:20:17
21:20:17
05:50:17
18:20:17
08:20:17
05:20:17
08:20:17
08:20:17
05:50:17
03:20:17
08:20:17
06:20:17
09:20:17
21:20:17
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