What event occurs once every 365.26 days?

The event that occurs once every 365.26 days is a solar year, which is the time it takes for the Earth to complete one full orbit around the Sun. This period accounts for the slightly longer duration than the typical 365 days, leading to the need for a leap year every four years to add an extra day, February 29, to the calendar. This adjustment helps keep our calendar year synchronized with the astronomical year.