In what year did February 30th appear?

1700, Sweden began to change its legislation from Confucianism to Gregorian calendar by canceling the next 40 years. So 1700 in Sweden is not a leap year, but all eight years of 1704+07 are one year, which makes Ruili in Sweden, for example, one day faster, so February becomes 30 days.

1929, the Soviet union passed the Soviet revolutionary legislation. There are 30 days in a month, and the remaining five or six days are holidays. I am very happy.

There is also a narcissist, Augustus the Great. In order to make the month of his birth 3 1 day, he took a day from February and put it in August 65438+ July, which is also 3 1 day.

Gregorian calendar February:

In the Gregorian calendar, February has 28 or 29 days. Nevertheless, February 30th is not a non-existent day in history. There were several periods on February 30th.

February, February is the second month of the solar year, with 28 days in a normal year and 29 days in a leap year. There have been three times in history, and there are 30 days in February. In the northern hemisphere, February is the third month of winter. This month's solar terms are: beginning of spring, it rains. February in English comes from February in ancient Rome and may also come from Sabine.

The nicknames of February are Li Yue, Xingyue, Huayue, Zhongyue, Zhongchun, John, Yueru, Zhongyang, Zhu Qiu, Sisi, Zhonghe, Huachao, Jia Zhong, Dazhuang and Uzuki.

But usually when you open the calendar, people will see that whether it is a normal year or a leap year, the big month is 3 1 day and the small month is 30 days. Only February has the fewest days, with only 28 days in a normal year and 29 days in a leap year.

As we all know, it takes 365 days, 5 hours, 48 minutes and 46 seconds for the earth to go around the sun. For the convenience of calculation, it is set to 365 days a year, which is called normal year. The extra five hours, 48 minutes and 46 seconds in a year will take four years to make up for one day, plus February, so there are 366 days in this year, which is called leap year.