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闰年是多少天
更新时间: 2021-03-09 10:49:48  

1、闰年共有366天。

2、凡是阳历中有闰日(2月29日)的年份,即岁余置闰。阴历每年与回归年相比所差的时日。闰年是为了弥补因人为历法规定造成的年度天数与地球实际公转周期的时间差而设立的。补上时间差的年份为闰年。

关键词: 闰年 多少

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