Heure à Porsgrunn
17:01:45
Lever du soleil: 07:03:21 
Coucher de soleil: 18:01:5100:01:45
19:01:45
13:01:45
21:31:45
10:01:45
00:01:45
21:01:45
00:01:45
00:01:45
21:31:45
19:01:45
00:01:45
22:01:45
01:01:45
13:01:45
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
-1
-1
-1
-4
-4
-4
-4
-5
-6
-6
-6
-7
-9