Leap Season is a term used to refer to the period of time between February and March when a leap day is added to the calendar. This period of time is also known as the intercalary year or bissextile year. During this time, an extra day is added to the calendar to make up for the fact that the Earth's orbit around the Sun does not take exactly 365 days. This extra day is added to the calendar every four years, and is referred to as a leap day. The season of Leap Season is typically associated with the SPRING season, which is why the crossword solution for the term was SPRING.