Ώρα Porsgrunn
03:50:52
Ανατολή ηλίου: 07:14:47 
Η δυση του ηλιου: 17:52:1010:50:52
05:50:52
23:50:52
08:20:52
20:50:52
10:50:52
07:50:52
10:50:52
10:50:52
08:20:52
05:50:52
10:50:52
08:50:52
11:50:52
23:50:52
Διαφορά ώρας μεταξύ Porsgrunn και μεγάλων πόλεων
+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