What is a common year this year What is a common year?

A common year is, first, a year in which there is no leap day in the solar calendar, or there is no leap month in the lunar calendar; The second refers to the year when the crop harvest is very ordinary.

A year in which there is no leap day in the solar calendar, or when there is no leap month in the lunar calendar, is called a common year. A year that is not a whole hundred divided by 4 or a year that is not a whole hundred divided by 400, if it is not divisible, it is a common year. February in a common year has only 28 days, while February in a leap year has 29 days.

The ordinary year of the solar calendar is 365 days, the ordinary year of the lunar calendar is generally 354 days or 355 days, and very rarely 353 days. Between the first year of the lunar year and the year 5000 AD, there were only a few years of 353 days in the lunar year: 780, 1620, 1965, 2372, 3620, 3903, 3965, 4186, 4248.

In some regions, a normal year also refers to a year when crops are usually harvested.

The year in which the lunar calendar has a leap month is also called a leap year, and the lunar calendar adopts the method of adding 7 leap months every 19 years, that is, the "19-year 7-leap method", that is, the lunar calendar has 7 leap years every 19 years [1].

What is a Weekyear.

A leap year was established to compensate for the difference between the number of days of the year and the actual orbital cycle of the earth caused by the man-made calendar. The year in which the time difference is not made up is a common year. The number of years in the Common Era (not per hundred) is not divisible by 4 for ordinary years; However, the number of years of the whole hundred (both the single digit and the ten digit is 0) is not divisible by 400 is also a common year; Everything else is leap years.

Calculation method: 1) The ordinary year is not divisible by 4 is the common year. (e.g. 1901 is a normal year, 2004 is not a normal year).

2) Century years are not divisible by 400 for common years. (e.g., 1900 is a normal year, 2000 is not a normal year).

How to judge the common year.

1) To judge whether the year is a normal year, just look at the last two digits of the year, if the last two digits are not divisible by 4, then it is a common year; Not the other way around.

2) In a year where the last two digits are 0, we look at the first two digits of the year, if the first two digits are not divisible by 4, then it is a common year; Not the other way around.

3) If you encounter 2004 (the last two digits are 04), you can directly regard it as a 1-digit number, if this number is not divisible by 4, then it is a common year; Not the other way around.

Error correcting. Resources.

The number of years in Common Era can be divisible by 4 as leap years, but the number of years in a whole hundred (0 in the single digit and the tenth place) must be divisible by 400 to be a leap year (e.g. 1900 is not a leap year), and the others are ordinary years.

For example, 1997 is a normal year and 2002 is a normal year; 1996 was a leap year and 2000 was a leap year. February in a common year has 28 days, while February in a leap year has 29 days.

Zodiac sign of the lunar calendar for 2020: Zi Rat.

Lunar calendar Gengzi year, solar calendar January 25, 2020 - February 11, 2021).

A year in which the solar calendar does not have a leap day or the lunar calendar does not have a leap month. The solar calendar has 365 days in a normal year, 354 or 355 days in a lunar ordinary year, and in rare cases 353 days.

Or a year when the crop harvest is very ordinary.

The number of years in Common Era is divisible by 4 as leap years, but the number of years with a hundred must be divisible by 400 to be leap years. Everything else is an ordinary year. February in leap years has 29 days.

For example, 1996 is a leap year, 2000 is a leap year, and a normal year has 28 days in February, 1900 is not a leap year, and 1997 is a common year.

The year with leap months in the lunar calendar is called leap year, and the lunar calendar adopts the method of adding 19 years to 7 leap months, that is, the "seventeen years and seven leap months", that is, there are 7 leap years in the 19th year of the lunar calendar.

Why is there a difference between ordinary years and good years? This is because the earth revolves around the sun for 365 days, 5 hours, 48 minutes and 46 seconds, and the annual period is set at 365 days, and every 4 years there are more than 23 hours, 15 minutes and 4 seconds, which is about 1 day. So every 4 years, add 1 day, added at the end of February.

But in this way, every four years there will be another 44 minutes and 56 seconds, and 128 years will have 1 more day. In order to deduct about 3 days in about 400 years, it is stipulated that when the number of years in Common Era is an integer multiple of 100, 400 is used to divide, and the division is a run-year, and it cannot be divided as a common year, such as 1600 and 2000 are run-years, but 1700 and 1800 can be divided by 4, but cannot be divided by 400, so it is a common year.

How can you tell which year is a normal year and which is a leap year? Divide the year by 4, if it is divisible, it is a leap year, and if it is not divisible, it is a common year.

The year that cannot be divided by 4 is a common year, a common year is 365 days, and this year is a run year of 366 days.

What is a common year and what is a leap year.

In general, a year divisible by 4 is a leap year, and a year not divisible by 4 is a common year. For example, 1988 and 2008 are leap years; 2005, 2006 and 2007 were normal years.

But if it is a century year (that is, a whole hundred years), only divisible by 400 is a leap year, otherwise it is a common year. For example, 2000 is a leap year, 1900 is a common year, February has 29 days, and February of a normal year has only 28 days.

The difference between a common year and a leap year.

The time it takes to revolve around the sun is called a year. Because the time it takes for the Earth to revolve around the Sun is about 365 days, 5 hours, 48 minutes and 46 seconds. Therefore, the Gregorian calendar stipulates that there are common years and leap years.

A year with 365 days as a year is called a common year. A year with 366 days as a year is called a leap year. The calculation method for ordinary years and leap years is "one leap in four years, no leap in one hundred years, and another leap in four hundred years".

According to this calculation, the year of the Common Era that is not divisible by 4 is a common year, the "year of a hundred" that is divisible by 4 is a leap year, the "year of a hundred" that is not divisible by 400 is a common year, and the number of years of the Common Era that is divisible by 400 is a leap year. For example, 1992 is a leap year, 2000 is a leap year, and 2100 is a common year.

Common year. Ordinary years and leap years are an indispensable unit of year calculation in our national Gregorian calendar, the year is very important to us, is used to calculate time, preserve historical stories and other major events, having a stable calendar is a blessing for mankind!

2017, 2018, 2019, 2021, 2022 and many more.

1. To judge whether the year is a leap year, you only need to look at the last two digits of the year, if the last two digits are divisible by 4, then it is a leap year, otherwise, it is not.

2. When we encounter a year where the last two digits are 0, we look at the first two digits of the year; If the first two digits are divisible by 4, then it is a leap year, and vice versa, it is not.

3. If you encounter that the two digits at the end of 2004 are 04, you can directly regard it as a 1-digit number, if this number can be divided by 4, then it is a leap year, otherwise, it is not.

The leap years are 1696, 1704, 1708, 1712, 1716, 1720, 1724, 1728, 1732, 1736, 1740, 1744, 1748, 1752, 1756, 1760, 1764, 1768, 1772,1776,1780,1784,1788,1792,1798,1804,1808,1812,1816,1820,1824,1828,1832,1836,1840,1844,1848,1852,1856,1860,1864,1868,1872，1876,1880，1884, 1888,1892,1896,1904,1908,1912,1916,1920,1924,1928,1932,1936,1940,1944,1948,1952,1956,1960,1964,1968,1972,1976，1980, 1984,1988,1992,1996,2000,2004,2008,2012,2016,2020,2024,2028,2032

The rest are ordinary years.

Summary. Ordinary year: One refers to the year when there is no leap day in the solar calendar, or there is no leap month in the lunar calendar; The second refers to the year when the crop harvest is very ordinary. The basic explanation is that the solar and lunar calendars have no leap days, or the lunisolar calendar does not have leap months.

Ordinary year: First, it refers to the year when there is no leap day in the solar calendar, or there is no leap month in the lunar calendar; The second is that the late harvest refers to the year when the crop harvest is very ordinary. The basic explanation is that the solar and lunar calendars have no leap days, or the lunisolar calendar does not have leap months.

Ordinary years and leap years are terms used in the calendar to distinguish the average length of the sunskin year. The distinction between ordinary and leap years is due to the fact that the length of the year does not exactly coincide with the time of the Earth's revolution around the Sun. Understanding the difference between a common year and a leap year is important for the calculation of time and some arrangements in life.