Hongch’ŏn時間
00:38:50
日出: 07:01:32 
日落: 18:20:3023:38:50
18:38:50
12:38:50
21:08:50
09:38:50
23:38:50
20:38:50
23:38:50
23:38:50
21:08:50
18:38:50
23:38:50
21:38:50
00:38:50
12:38:50
Hongch’ŏn與主要城市的時差
+2
+2
+0
+0
+0
+0
+0
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-2
-2
-2
-3
-3
-3
-3
-4
-4
-5
-6
-6
-6
-6
-6
-6
-6
-7
-7
-7
-7
-8
-8
-8
-8
-8
-8
-9
-9
-9
-12
-12
-12
-12