☀️ Solstices & Equinoxes · अयन
Understand astronomical seasons and browse the separate sidereal Sankranti calendar
2026
Solstices and equinoxes are different from Sankranti
Astronomical solstices occur in June and December, and equinoxes in March and September. The Sankranti dates below describe the Sun entering sidereal zodiac signs; they do not give the times of those astronomical seasonal events.
Reference: NOAA: changing of the seasons.
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All times in IST (UTC+5:30). Sankranti timings use sidereal (Lahiri ayanamsa) calculations.