How long does it take for the Earth to revolve around the Sun?

The Earth takes approximately 365 days to complete one full revolution around the Sun. This period defines one year in the calendar. The revolution occurs due to the gravitational pull of the Sun, which keeps Earth and other planets in orbit.

The time it takes for Earth to revolve around the Sun is a key aspect of understanding the seasons, as the tilt of Earth’s axis in relation to its orbital path affects the distribution of sunlight and consequently the climate and length of days throughout the year.

This 365-day cycle has been established through centuries of astronomical observations and helps in the accurate calculation of calendars used globally. Other time frames, such as 24 hours, which represents one complete rotation of Earth on its axis, or 29.5 days, which pertains to the lunar cycle, are not related to Earth's revolution around the Sun. Similarly, the 30-day option does not correlate with any significant astronomical event regarding Earth's orbital period.