How many days in a year?
The number of days in a year depends on whether it is a leap year or a common year.
- A common year has 365 days134.
- A leap year has 366 days, with the extra day added to the month of February, making it a 29-day month instead of the usual 28 days134.
Leap years occur every four years, except for years that are divisible by 100 but not by 4003.