We come again with some very interesting things to tell you, as the new Gregorian year dawns.

我们带着一些非常有趣的事回来要告诉你，正如新公历年的黎明。

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Handling leap year is fairly straightforward—add an extra day, if using the Gregorian calendar, to the year-month or day interval calculations.

处理闰年相当简单——如果使用公历，在以年月日为时间间隔的计算中添加额外的一天。

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This was New Year's Day until the 18th Century, and the tax year got separated from it when we jumped 11 days switching to the Gregorian calendar in 1752.

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