The Earth orbits the Sun once every year, completing a full revolution around it. This journey takes approximately 365.25 days, which is why we have a leap year every four years to account for that extra quarter of a day.
During this orbit, the Earth’s tilt on its axis causes the seasons to change, resulting in variations in climate and daylight throughout the year. So, while it may feel like time flies, the Earth’s consistent orbit is what defines our calendar year.