Chŏngju時間からGresik時間への変換
17:50:55
-2
15:50:55
+1
+1
+0
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-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
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-1
-1
-1
-1
-1
-1
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-12
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-12