Heure à Porsgrunn
07:21:28
Lever du soleil: 08:02:30 
Coucher de soleil: 18:11:0913:21:28
08:21:28
02:21:28
10:51:28
23:21:28
13:21:28
10:21:28
13:21:28
13:21:28
10:51:28
08:21:28
13:21:28
11:21:28
14:21:28
02:21:28
Décalage horaire entre Porsgrunn et les grandes villes
07:21:28
-6
01:21:28
+7
+7
+7
+7
+7
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+5
+5
+5
+4.5
+4
+4
+4
+4
+3.5
+3.5
+3.5
+3.5
+3.5
+3.5
+3.5
+3.5
+3.5
+3.5
+3
+3
+2.5
+2
+1.5
+1
+1
+1
+1
+1
+1
+1
+1
+1
+0
+0
+0
+0
-1
-1
-1
-1
-1
-1
-2
-5
-5
-5
-5
-6
-6
-7
-7
-8
-9