Panchang in Sevan, Gegharkunik, Armenia Sun 5 Jul 2015

The Sankashti fast is broken at moonrise. Chaturthi runs from 23:14 on Sat 4 Jul to 20:37 on Sun 5 Jul, between the two nights’ moonrise, touching neither. The Dharmasindhu then takes the later day: Sun 5 Jul. No text giving Sankashti Chaturthi’s time was found; moonrise is Tithika’s convention.

Sankashti Chaturthi: every date in Sevan

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, 05:35 here. Tritiya ended at 23:14 Sat, before it. Chaturthi ends at 20:37, when the lead reaches 228°. The lead passed 180° at the full moon of 2 Jul, so the Moon is waning: Krishna paksha.

The night of Sat 4 Jul ran from sunset 20:33 Sat to sunrise 05:35, 9 h 2 m. Cut into 15 muhurtas of 36 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 05:35 to 20:33, splits into 8 choghadiyas of 1 h 52 m. Their names follow a fixed order that starts from the weekday, and each name is counted good, neutral or bad.

The night here, 20:33 to 05:35 Mon, splits into 8 choghadiyas of 1 h 7 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′. Dhanishtha spans 293°20′–306°40′; the Moon entered its pada 2 at 296°40′. It leaves at 19:36, for Shatabhisha.

Add the Sun's and the Moon's places among the stars: 78.7° + 298.2° = 376.9°, one full turn and 16.9°. Past the turn, cut into 27 parts of 13°20′, it gives the yoga: 13°20′–26°40′ is the 2nd, Priti. It ends at 20:48, then Ayushmana.

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 09:55, when the lead reaches 222°; Balava until 20:37.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 05:35 to 05:35 Mon, so the hours after midnight still belong to Raviwara.

A month normally holds one sankranti, the Sun's entry into a new rashi. From 16 Jun 18:05 Tue to 16 Jul 05:24 Thu the Sun stayed in Mithuna, entering Karka at 17 Jul 02:32 Fri, after the new moon. A month with no sankranti is Adhika Ashadha, before Ashadha itself.

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 16 Jul, with the Sun in Mithuna, begins Ashadha (Adhik). Until then this Krishna paksha reads Ashadha (Adhik) here, and Ashadha (Adhik) in the amanta count.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 20 Mar 2015, 13:36 Fri. Since then the Sun has moved 103.3° round the stars. Vikram Samvat numbers that year 2072; Shaka Samvat numbers it 1937.