In 2020, there were 366 days in the year. In 2021, there were 365 days in the year. In 2022, there will also be 365 days in total. The number of days in a year varies depending on whether or not it is a leap year. To be a leap year, the year number must be divisible by four – except for end-of-century years, which must be divisible by 400. This means that the year 2000 was a leap year, although 1900 was not. The previous and next leap years to come are as follows: 2008 2012 2016 2020 2024 2028 2032