Why do we have leap years?
Earth's orbit takes about 365.24 days, not a whole number. An extra day roughly every four years keeps the calendar in step with the seasons.
Starter thread · AI-reviewed against its sources
Science
Earth's orbit takes about 365.24 days, not a whole number. An extra day roughly every four years keeps the calendar in step with the seasons.
Starter thread · AI-reviewed against its sources