Find auspicious timings for the day
This page does two different jobs. Daily Muhurta describes one date at one place: the Abhijit window, the sixteen Choghadiya slots (eight of the day counted from sunrise and eight of the night from sunset), the hora sequence from sunrise onward, and activity recommendations keyed to that day's nakshatra and karana. Find Muhurta works the other way round: you pick an activity and a date range, and it scans the range and ranks the windows it finds.
The finder covers twenty activities: marriage, griha pravesh, vehicle purchase, property purchase, business opening, travel, namakaran, vidyarambha, mundan, upanayana, annaprashana, karnavedha, aksharabhyasa, nishkramana, seemantonnayana, griha-arambha and bhumi-pujan, sowing, harvest, mantra diksha, and a general auspicious option. A birth nakshatra can be supplied so that Tara Bala and Chandra Bala are applied, and Lagna Shuddhi can be switched on.
Each candidate day is checked for Panchanga Shuddhi, the purity of the five limbs; for the classical auspicious combinations; for the day doshas; for Tara Bala and Chandra Bala against a supplied birth nakshatra; and, for the rites whose own chapters call for it, for the combustion of Jupiter or Venus.
Rahu Kaal, Yamaganda and Gulika are excluded from the windows offered. The result is a score from 0 to 100 with a quality band, and the factors that produced it are listed rather than hidden.
The weighting behind that number is this app's own editorial rendering and is labelled as such on the page, because no source, Sanskrit or modern, ranks the five limbs numerically against one another. One ordering is attested and the bands encode it structurally: B.V.
Raman's Muhurtha Ch.II says that "by far the most important ones are tithi, nakshatra and vara", so every penalty attached to yoga or karana is kept strictly smaller than every penalty attached to the primary three. Where an activity's own chapter expressly rejects a weekday, no window is offered on that day at all, because a prohibition is not a demerit to be traded off.
It flags Guru and Shukra asta, the combustion of Jupiter and Venus, on the days where the activity's own chapter requires that check, and it prints the flag on the day rather than silently discounting the score.
It also surfaces the Tithi-Gandanta bands: the last two ghatis of the 5th, 10th and Purnima, and the first two of the 6th, 11th and the dark-half first. Those bands are exactly 48 minutes wide on every date, because this rule's ghati is a fixed 24 minutes and does not stretch the way the Varjyam window does.
It does not apply month-level blackouts. Adhik Maas, Kharmas and Chaturmas are periods a tradition may bar in their entirety, and they are computed on the barred-periods page rather than folded into this score. A day this finder rates highly can still fall inside one of them, so that page is worth checking before a date is fixed for a samskara.
The eight day Choghadiya divide the sunrise to sunset arc into eight equal parts and the eight night Choghadiya divide sunset to sunrise the same way, so a Choghadiya is about ninety minutes near the equinox and longer or shorter for the rest of the year.
Each slot carries its planetary lord and its classification: Amrit, Shubh and Labh good, Char neutral, and Rog, Kaal and Udveg not. Abhijit is a third division again, the eighth of the fifteen equal diurnal muhurtas, with apparent noon at its midpoint.
The hora sequence is the one division on this page that is not proportional: it runs as successive sixty-minute periods from sunrise, the first ruled by the lord of the weekday - Sun on Sunday, Moon on Monday, Mars on Tuesday, Mercury on Wednesday, Jupiter on Thursday, Venus on Friday, Saturn on Saturday - and then follows the fixed order Sun, Venus, Mercury, Moon, Saturn, Jupiter, Mars. The page prints the twelve hora that follow sunrise with their lords and their clock times.
The finder can also apply Lagna Shuddhi, the purity of the electional ascendant, which needs a rising sign and is therefore computed on the server from the date, time and place.
Raman's Muhurtha closes Ch.V with "the most important question in Muhurta is the fortification of Lagna and its Lord", and Ch.VI item 11 states operationally that Jupiter or Venus in a kendra with malefics in the 3rd, 6th or 11th "will remove all flaws arising on account of unfavorable weekday, Nakshatra, Tithi and Yoga".
So a defect at the lagna cannot be traded away against a good nakshatra, while the reverse trade is attested. The individual doshas are reported separately with their own citations and are never collapsed into a single cancelled flag, because the four attested cancellers have four different scopes, and merging them would let a canceller that reaches only vara, nakshatra, tithi and yoga appear to clear something it does not touch.