Maha Shivaratri
15 February 2026

Maha Shivaratri is Phalguna Krishna Chaturdashi — the Chaturdashi of the krishna fortnight of Phalguna. It is kept at midnight, so the date is the day that tithi is running nishita, the middle of the night.

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.