Is 2009 a leap year or a normal year Why do some people say leap year

Is 2009 a leap year or a normal year Why do some people say leap year

They are talking about the lunar calendar, right? In my impression, it is different from the universal four-year leap (those that can be divided by 100 must be divided by 400 at the same time)
Solar calendar: General year can be divided by 4 is leap year, the last 2 or 3 is 0, to be divided by 400, 2009 is not leap year
Lunar calendar: in the old Chinese calendar, a year with a leap month is called a leap year. Generally, the year is 12 months, 354 or 355 days, while the leap year is 13 months, 383 or 384 days. As a kind of Yin Yang calendar, the number of days in each month is determined according to the monthly deficit, and the time of a year is based on 12 months. In order to keep up with the earth's cycle around the sun, that is, the return year, one month is added every 2 to 4 years, The added month is a leap month, so the leap year of the lunar calendar is 13 months
There is no 13th month in the lunar calendar. According to the rules of the calendar, the leap month is arranged after February to October, repeating the same month. The repeated month is called leap month. For example, the leap month after April is called leap April
The calculation of the leap month in the lunar leap year is one leap in three years, two leap in five years and seven leap in 19 years. Basically, the 19-year cycle of the lunar calendar corresponds to the same time in the Gregorian calendar. For example, the dates of May 27, 2001, May 27, 1982 and May 27, 1963 in the Gregorian calendar are the fifth day of the fourth leap month
The number of days in the leap month is 29 or 30 days, which is the same as that in the normal month
2009 in the lunar calendar should have been ugly, run in May

1900, 1949, 1956, 1984, 2000, 2008, 2020 are these years flat years or leap years

A year divisible by four is a leap year
therefore
Leap years: 1956, 1984, 2000, 2008, 2020
Normal year: 1900-1949

Is 1949 an ordinary year or a leap year
Come on

Ordinary year
1949 doesn't divide by four, so it's not a leap year