Hongch’ŏn時間
23:47:16
日出: 05:17:41 
日落: 19:31:5922:47:16
17:47:16
11:47:16
20:17:16
08:47:16
22:47:16
19:47:16
22:47:16
22:47:16
20:17:16
17:47:16
22:47:16
20:47:16
23:47:16
11:47:16
Hongch’ŏn與主要城市的時差
23:47:16
-13
10:47:16
+1
+1
+0
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-1
-1
-1
-1
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-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
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-8
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-8
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-9
-12
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-12