Hongch’ŏn時間
07:50:30
日出: 07:41:17 
日落: 17:36:1206:50:30
01:50:30
19:50:30
04:20:30
16:50:30
06:50:30
03:50:30
06:50:30
06:50:30
04:20:30
01:50:30
06:50:30
04:50:30
07:50:30
19:50:30
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
-8
-9
-9
-12
-12
-12
-12