Google celebrates its leap Day with a doodle on 29 February. The main reason for this is that this day comes to recover in 4 years which is known as leap which consists of 366 days. This was answered by the field of astronomy. Another day is added “to synchronize the calendar with the planet’s orbit”, explained the National Council of La Plata (UNLP) astronomer Romina Micaulan and a council researcher. National of scientific and technical research.