Konwersja czasu T’ongch’ŏn-ŭp do czasu Piet Retief
11:39:15
-7
04:39:15
+2
+2
+0
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-1
-1
-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
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-1
-1
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-1
-1
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-8
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-9
-12
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-12