Astronomical Autumn Begins in Russia on September 23

Astronomical autumn began in Russia on September 23, marking the autumnal equinox when day and night are of equal length. After this date, days in the Northern Hemisphere became shorter and nights longer.

Consensus

• Astronomical autumn in the Northern Hemisphere began on September 23.
• The autumnal equinox occurred on September 23, equalizing day and night lengths globally.
• After the equinox, days in the Northern Hemisphere became shorter than nights.
• In Moscow, the daylight duration decreased from 13 hours 52 minutes to 11 hours 40 minutes between early and late September.

Points of divergence

• The autumnal equinox occurred at 03:05 MSK on September 23, 2026. — vesti
• The autumnal equinox occurred on September 2026, but the exact time was not specified. — tg_moscowmap

Coverage (2 sources)

• Astronomical autumn in Russia will begin on September 23 — Новости Москвы
• In the planetarium they told when astronomical autumn will arrive in the Russian Federation — Вести

Key entities

• Russia
• Moscow
• Northern Hemisphere
• Northern Hemisphere of the planet
• Zemlya
• RIA Novosti
• Southern
• Moscow Planetarium