《宋书·志·卷十二》
入月：十五。
入月日，十五。
Month phase: 15th day of the month.
<s>[INST] Translate the following Classical Chinese text into modern Chinese: 入月日，十五。 [/INST] 入月：十五。</s>
Translate the following Classical Chinese text into modern Chinese: 入月日，十五。
user
入月：十五。
assistant