What is a leap year and why do they happen?
- 3 months ago
Our calendar years measure the time it takes the earth to orbit the sun, which we round to 365 days. But, it takes the earth 365.24219 days to orbit the sun. Annoyingly, that’s around a quarter of a day - or 5.8 hours - longer than our calendar years. So, every four years, we add the left-over hours together, and make a day - the leap day on February 29.