Sentence examples for leap year from inspiring English sources

"leap year" is a correct and commonly used phrase in written English.
It refers to a year in which an extra day, February 29th, is added in order to keep the calendar synchronized with the Earth's orbit around the sun. You can use the phrase "leap year" in a sentence when talking about the four-year cycle in which a leap day is added to the calendar. For example: - "Next year is a leap year, so we'll have an extra day in February." - "According to our calculations, the next leap year will be in 2024." - "She was born on February 29th, which only occurs in a leap year."