When is the next leap year?
Quick Answer: The next leap year is 2028. Since it is currently 2025, the next time we will add an extra day to February (the 29th) is in 3 years.
Leap years happen mostly every four years to help keep our calendar in sync with Earth's orbit around the sun. Without this adjustment, our calendar would drift off by about 6 hours every year.
The rule is simple: a year is a leap year if it is divisible by 4. However, century years (like 1900 or 2100) are only leap years if they are also divisible by 400. That is why 2000 was a leap year, but 2100 will not be.