We have a solar eclipse taken place in April, and it's a leap year.

四月有日食，今又。

February has twenty-eight alone. All the rest have thirty-one. Except in leap year.

二月仅有二十八。 除了在， 余下月份均有三十一。

After all, we all know the answer is 365-and 366 in leap years-right?

毕竟，我们都知道答案365，而366，对吧？

All right, so 2024 is a leap year.

2024。

The reason for a leap day or a leap year is because our calendar does not follow the Earth's orbit around the sun exactly.

日或之所以出现，因我们日历并不完全按照地球绕太阳轨道运行。

According to Irish tradition, years with 366 days were years when women could propose to men when it was the other way around in non leap years.

根据爱尔兰传统，在有366，女性可以向男性求婚，而平则要反过来。

This so-called tradition was even written in law in the 13th Century. Scotland passed a law allowing women to propose to men in a leap year.

这个所谓传统甚至在13世纪被列入法条当中。苏格兰通过了允许女士在向男士求婚法律。

Hence the leap year every four years the Mars year is nearly double that time at 687 earth days or converted to Mars days 669.

因此，每四一次，火星几乎地球两倍，即 687 个地球日，或转换火星日 669。

He reformed the calendar, so that it ended up being more or less like ours, with 12 months and leap years.

他想重新划分历，划分方法几乎跟我们今一样，用12个月和。

So, folks born on that date in a leap year will get to celebrate their birthdays on their actual birth date.

因此那一出生人们会在这样实际日期庆祝自己生日。

Last year was a leap year, skewing the comparison of this year's shorter first quarter with last year's longer one.

去，所以今第一季度相对去来说要短一些。

To mark the start of the 366-day countdown (2012 is a leap year), special events are planned for today.

今，人们计划举办独具特色庆祝活动来启动伦敦奥运会366倒计时（2012）。

Looking at you here, leap years.

看下日历，2020。

So, that's how leap years work.

所以，这就机制啦。

Who came up with leap years and why do we have them?

谁提出了，什么我们有呢？

Pope Gregory also made February 29th, the official date to add during a leap year.

格里高利还把2月29日确定官方日期。

And there is some interesting history associated with leap years.

有关还有一些有趣历史。

According to the legend, Saint Patrick said any females yearning for a proposal could ask their boyfriend to marry them on this additional day in February.

据说于，圣帕特里克决定允许渴望被求婚女人在2月29号向男人求婚。

Leap years were believed to be difficult, and leap days unlucky and a bad time to begin anything new.

被认很艰难一， 而日不吉利，不开始新事物好时机。

In a leap year, the dates jump over one day of the week.

在，日期会跳过一周中一。