A leap year is defined as a calendar year that contains one additional day, bringing the total days in the year to 366. In the Gregorian calendar, which is considered to be the standard across the globe, a leap year occurs every 4 years. 2024 is a leap year and today is a leap day, giving February 29 days instead of 28.
According to Wikipedia, the leap day added in the leap year is meant to keep the calendar year synchronized with the various seasons in the year. Happy leap day/leap year to all our readers!