Heure à Porsgrunn
13:05:19
Lever du soleil: 08:48:48 
Coucher de soleil: 16:17:3420:05:19
15:05:19
09:05:19
17:35:19
06:05:19
20:05:19
17:05:19
20:05:19
20:05:19
17:35:19
15:05:19
20:05:19
18:05:19
21:05:19
09:05:19
Décalage horaire entre Porsgrunn et les grandes villes
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+6
+6
+6
+5.5
+5
+5
+5
+5
+4.5
+4.5
+4.5
+4.5
+4.5
+4.5
+4.5
+4.5
+4.5
+4.5
+4
+4
+3.5
+3
+2.5
+2
+2
+2
+2
+2
+2
+2
+1
+1
+1
+1
+0
+0
+0
+0
+0
+0
+0
-1
-1
-4
-4
-4
-4
-5
-6
-6
-6
-7
-9