Hongch’ŏn時間
19:30:55
日出: 07:41:41 
日落: 17:35:0918:30:55
13:30:55
07:30:55
16:00:55
04:30:55
18:30:55
15:30:55
18:30:55
18:30:55
16:00:55
13:30:55
18:30:55
16:30:55
19:30:55
07:30:55
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