Sita Navami
25 April 2026

Sita Navami is Vaishakha Shukla Navami — the Navami of the shukla fortnight of Vaishakha. It is kept at midday, so the date is the day that tithi is running madhyahna, the middle of the daylight hours.

Computed from the Moon’s elongation with the Swiss Ephemeris, sidereal, Lahiri ayanamsa. A tithi begins and ends at a real minute rather than at midnight, which is why the moment above decides the day — and why the same tithi read at a different hour can name a different date.