Hongch’ŏn時間
22:13:20
日出: 07:41:41 
日落: 17:35:0921:13:20
16:13:20
10:13:20
18:43:20
07:13:20
21:13:20
18:13:20
21:13:20
21:13:20
18:43:20
16:13:20
21:13:20
19:13:20
22:13:20
10:13:20
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