Winter is currently the current season in the United States. Spring starts March 20, 2025, lasting until June 20, 2025. Summer begins June 20, 2025, lasting until September 22, 2025. Fall starts September 22, 2025, lasting until December 21, 2025. Winter begins December 21, 2025, lasting until March 20, 2026
Earth completes one orbit around Sun at 108,000 km/h. Planet travels 940 million km during one orbit. Earth's average distance from Sun is 149.6 million km
Midnight sun occurs when Sun remains visible at local midnight in summer. Phenomenon extends from 65°44' to 90° north or south. Occurs in Arctic Circle and Antarctic Circle regions
Daytime occurs when Sun appears above local horizon. Approximately half of Earth is illuminated at any time. Sundial can record sun movement during daylight
Earth orbits Sun at 149.60 million km, completing one orbit in 365.256 days. Orbit is elliptical with Earth-Sun barycenter as focus, eccentricity 0.0167. Earth's orbital speed averages 29.78 km/s, covering diameter in 7 minutes. Sun appears to move eastward about 1° per solar day