Leap Year Day 2024 Australia. When it's a leap year? A leap year is a year that has 366 days, instead of the usual 365 days.
A leap year is a year with 366 days instead of 365, the extra day falling on february 29 when every other year the month would end on february 28. Why do we have leap years, and what are we supposed to do โ or not do โ with our rare extra day?