Piet Retief時間からSinanju時間への変換
12:00:47
+7
19:00:47
+7
+7
+7
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+7
+6
+6
+6
+6
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-1
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-1
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-2
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-5
-5
-5
-5
-6
-7
-7
-7
-8
-10