Ora Porsgrunn
17:30:10
Răsărit: 08:06:42 
Apus de soare: 18:06:1623:30:10
18:30:10
12:30:10
21:00:10
09:30:10
23:30:10
20:30:10
23:30:10
23:30:10
21:00:10
18:30:10
23:30:10
21:30:10
00:30:10
12:30:10
Diferența de timp între Porsgrunn și marile orașe
+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