Each 4 years, we expertise a bissextile year, which is a yr with three hundred and sixty six days as an alternative of the same old 365. That is completed to maintain our calendar in sync with the Earth’s orbit across the solar, which takes about 365.242 days. With out leap years, our seasons would slowly drift out of alignment with the calendar over time.
There are just a few easy guidelines to find out whether or not a yr is a bissextile year: