Piet Retief時間からPran Buri時間への変換
20:30:40
+5
01:30:40
+7
+7
+7
+7
+7
+6
+6
+6
+6
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-1
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-1
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-2
-5
-5
-5
-5
-6
-6
-7
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-8
-9