Panchang in Pāthardi, Maharashtra Sun 29 Nov 2015

The Sankashti fast is broken at moonrise. Chaturthi runs from 22:01 on Sat 28 Nov to 21:17 on Sun 29 Nov, between the two nights’ moonrise, touching neither. The Dharmasindhu then takes the later day: Sun 29 Nov. No text giving Sankashti Chaturthi’s time was found; moonrise is Tithika’s convention.

Sankashti Chaturthi: every date in Pāthardi

The Moon gains on the Sun about 12° a day. Each 12° of lead is one tithi: 216°–228° is the 19th, Krishna Chaturthi. A day takes the tithi in force at its sunrise, 06:44 here. Tritiya ended at 22:01 Sat, before it. Chaturthi ends at 21:17, when the lead reaches 228°. The lead passed 180° at the full moon of 26 Nov, so the Moon is waning: Krishna paksha.

The night of Sat 28 Nov ran from sunset 17:49 Sat to sunrise 06:44, 12 h 55 m. Cut into 15 muhurtas of 51 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 06:44 to 17:49, splits into 8 choghadiyas of 1 h 23 m. Their names follow a fixed order that starts from the weekday, and each name is counted good, neutral or bad.

The night here, 17:49 to 06:45 Mon, splits into 8 choghadiyas of 1 h 37 m. Their names follow a fixed order that starts from the weekday, and each name is counted good, neutral or bad.

The fixed stars divide the Moon's path into 27 nakshatras of 13°20′, each in 4 padas of 3°20′. Punarvasu spans 80°00′–93°20′; the Moon entered its pada 1 at 80°. It leaves at 01:31 Mon, for Pushya.

Add the Sun's and the Moon's places among the stars: 222.4° + 83° = 305.4°. The sum, cut into 27 parts of 13°20′, gives the yoga: 293°20′–306°40′ is the 23rd, Shubha. It ends at 08:55, then Shukla.

A karana is half a tithi: 6° of the Moon's lead, so the first half of Chaturthi is Bava and the second Balava. Bava runs until 09:33, when the lead reaches 222°; Balava until 21:17.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 06:44 to 06:45 Mon, so the hours after midnight still belong to Raviwara.

An amanta month runs from new moon to new moon and takes its name from the rashi the Sun is in at the new moon that begins it: Tula gives Kartika. The Sun enters Vrishchika on 17 Nov, inside the month. The next new moon, 11 Dec, finds it in Vrishchika and begins Margashirsha.

A purnimanta month runs from full moon to full moon, so its waning half comes first. It shares its name with the amanta month that its second half falls in: the new moon of 11 Dec, with the Sun in Vrishchika, begins Margashirsha. Until then this Krishna paksha reads Margashirsha here, and Kartika in the amanta count.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 20 Mar 2015, 15:06 Fri. Since then the Sun has moved 247° round the stars. Vikram Samvat numbers that year 2072; Shaka Samvat numbers it 1937.