Why Is 2020 Called a Leap Year?

Now, it's time for Words and Their Stories -- our weekly program about common, everyday expressions in American English.

Today we are talking about the somewhat¹ unusual day of February 29. It comes up on the calendar only every four years. A year with a February 29 might be good news if you are paid by the day or the week. But it might be bad news if you were born on a February 29. You have to wait three years in between birthdays!

In any case, American English has a term for the unusual situation. February 29 is called a leap day. And the entire 12 month period with a February 29 in it is called a leap year. This year, 2020, is such a year.

As a verb, the word "leap" means to jump, or to move quickly. "Leap" can also be a noun², meaning a jump, or a sudden move.

In a leap year, the dates jump over one day of the week. Let me explain. In 2017, the last day of the year, December 31, fell on a Sunday. In 2018, it fell on a Monday. In 2019, it fell on a Tuesday. But in 2020, December 31 will fall on a Thursday. It just leaped right over Wednesday.

The reason for a leap day or a leap year is because our calendar does not follow the Earth's orbit³ around the sun exactly. Each year, we have a little time left over. So every four years, we put all that time together into an extra day – or, what is officially called an intercalary day. But I have never, ever heard an English speaker use that term. "Leap day" is fine.

"Leap" is also an important word for two other common – but opposing – American expressions. One is a kind of warning. If you want someone to investigate a situation completely before taking action, you might say, "Look before you leap."

The other expression is a phrase of hope. Urging someone to "take a leap of faith" invites the person to take action, even if not everything about a situation is known.

Interestingly, both phrases are completely reasonable to say to someone who is about to get married.

On that note, some people choose to marry on February 29 because it is an unusual date. One wedding chapel⁴ in the U.S. city of Las Vegas is even offering a free ceremony for those who decide to "take the leap" into marriage on the last day of this month. The ceremony is followed by a chance to skydive together – that is, jump out of an airplane with a parachute.

But some ancient peoples would likely tell couples not to do it. Leap years were believed to be difficult, and leap days unlucky and a bad time to begin anything new.

Whatever you think about them, the change in the calendar will be gone soon enough. Then we can return to normal, and leap over February 29 as usual.

Words in This Story

calendar - n. a document or chart that shows the days, weeks, and months of a year

chapel - n. a place used for small religious services

1 somewhat   

pron.一些，某物；adv.多少，几分

参考例句：

• The cake we made was somewhat of a failure.我们做的蛋糕不大成功。
• The two office buildings are somewhat alike in appearance.这两座办公楼在外形上有点相似。

2 noun   

n.名词

参考例句：

• What kind of noun is this?这是哪类名词？
• This word is a collective noun.这个词是个集体名词。

3 orbit   

n.轨道；vt.使沿轨道运行；使进入轨道运行；vi.沿轨道运行，环行

参考例句：

• The space rocket was launched and went into orbit.宇宙火箭发射后进入轨道。
• We can draw the earth's orbit round the sun.我们可以画出地球绕太阳运行的轨迹。

4 chapel   

n.小教堂，殡仪馆

参考例句：

• The nimble hero,skipped into a chapel that stood near.敏捷的英雄跳进近旁的一座小教堂里。
• She was on the peak that Sunday afternoon when she played in chapel.那个星期天的下午，她在小教堂的演出，可以说是登峰造极。