Vratams and monthly observances
A vratam is a vow kept on a particular tithi: a fast, a worship, and a resolution held for a day. Most recur every lunar month, which is what distinguishes them from festivals: festivals mark the year, and vratams keep its monthly rhythm.
Each page below gives what the observance is, who keeps it, the fasting rule, the pooja method, and every date it falls on this year and next. The dates are computed for India, from the tithi in force at 06:00 IST, and each one links through to that day's full panchangam, where the timings are recomputed for your selected city so you can check the ones that matter — the parana window after an Ekadashi, the pradosha kala before sunset, moonrise for Sankashti.
Where a regional tradition reckons an observance differently — and for Ekadashi in particular it often does — we say so on the page rather than quietly picking one reading.
Dates for India · IST (UTC+5:30) · tithi read at 06:00 local time · amanta months · Lahiri ayanamsa. How we calculate
Ekadashi
The eleventh tithi of each fortnight — the principal fasting day of the Vaishnava year.
Next: 6 Oct · 22 Oct
Pradosham
The thirteenth tithi — Shiva worship in the twilight hour before sunset.
Next: 8 Oct · 24 Oct
Sankashti Chaturthi
The waning fourth tithi — Ganesha worship for the removal of obstacles, broken at moonrise.
Next: 29 Oct · 28 Nov
Masik Shivaratri
The waning fourteenth tithi — the monthly night of Shiva.
Next: 9 Oct · 8 Nov
Masik Durgashtami
The waxing eighth tithi — monthly worship of Durga.
Next: 19 Oct · 17 Nov
Kalashtami
The waning eighth tithi — worship of Kala Bhairava.
Next: 2 Nov · 1 Dec
Skanda Sashti
The waxing sixth tithi — monthly worship of Subrahmanya.
Next: 16 Oct · 15 Nov
Satyanarayana Puja
Kept on the full moon — the household vrat of Vishnu as Satyanarayana.
Next: 26 Oct · 24 Nov
Chandra Darshan
The first sighting of the new moon's crescent, the evening after amavasya.
Next: 11 Oct · 10 Nov
Pournami
The full moon — vratam, charity and the brightest night of the month.
Next: 26 Oct · 24 Nov
Amavasya
The new moon — reserved for the ancestors, not for beginnings.
Next: 10 Oct · 9 Nov
Dwadashi
The twelfth tithi — the window in which the Ekadashi fast must be broken.
Next: 7 Oct · 23 Oct