Porsgrunn時間
20:41:20
日出: 04:36:01 
日落: 21:59:5902:41:20
21:41:20
15:41:20
00:11:20
12:41:20
02:41:20
23:41:20
02:41:20
02:41:20
00:11:20
21:41:20
02:41:20
00:41:20
03:41:20
15:41:20
Porsgrunn與主要城市的時差
20:41:20
-6
14:41:20
+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
-6
-6
-6
-7
-7
-8
-9