《旧唐书·本纪·卷十六》
冬季，十月初一为甲子日。
冬十月甲子朔。
In winter, the first day of the tenth lunar month is the Jiazi Day.
<s>[INST] Convert the following English text into Classical Chinese: In winter, the first day of the tenth lunar month is the Jiazi Day. [/INST] 冬十月甲子朔。</s>
Convert the following English text into Classical Chinese: In winter, the first day of the tenth lunar month is the Jiazi Day.
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冬十月甲子朔。
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