Heure à Hongch’ŏn
16:42:20
Lever du soleil: 07:05:36 
Coucher de soleil: 18:17:2715:42:20
10:42:20
04:42:20
13:12:20
01:42:20
15:42:20
12:42:20
15:42:20
15:42:20
13:12:20
10:42:20
15:42:20
13:42:20
16:42:20
04:42:20
Décalage horaire entre Hongch’ŏn et les grandes villes
+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