Panchang in Sevan, Gegharkunik, Armenia Wed 10 Oct 1923

Ghatasthapana is done in pratahkala, the first fifth of the day. Pratipada runs from 09:03 on Wed 10 Oct to 05:24 on Thu 11 Oct, between the two mornings’ pratahkala, touching neither. The Dharmasindhu then takes the earlier day: Wed 10 Oct.

Sharad Navratri: every date in Sevan

Amavasya follows the tithi at sunrise. Amavasya runs from 12:30 on Tue 9 Oct to 09:03 on Wed 10 Oct, so it holds sunrise only on Wed 10 Oct, at 06:02. No text giving Amavasya’s time was found; sunrise is Tithika’s convention.

Amavasya: every date in Sevan

The Moon gains on the Sun about 12° a day. Each 12° of lead is one tithi: 348°–360° is the 30th, Krishna Amavasya. A day takes the tithi in force at its sunrise, 06:04 here. Chaturdashi ended at 12:32 Tue, before it. Amavasya ends at 09:05, when the lead reaches 360°. The lead passed 180° at the full moon of 25 Sep, so the Moon is waning: Krishna paksha.

A day takes the tithi in force at its sunrise. Pratipada began at 09:05 and ended at 05:26 Thu, between the sunrises of 06:04 and 06:05 Thu. Wednesday reads Amavasya and Thursday reads Dwitiya: Pratipada is a kshaya tithi here.

The night of Tue 9 Oct ran from sunset 17:31 Tue to sunrise 06:04, 12 h 33 m. Cut into 15 muhurtas of 50 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 06:04 to 17:29, splits into 8 choghadiyas of 1 h 25 m. Their names follow a fixed order that starts from the weekday, and each name is counted good, neutral or bad.

The night here, 17:29 to 06:05 Thu, splits into 8 choghadiyas of 1 h 34 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′. Hasta spans 160°00′–173°20′; the Moon entered its pada 4 at 170°. It leaves at 09:26, for Chitra.

Add the Sun's and the Moon's places among the stars: 173° + 171.2° = 344.2°. The sum, cut into 27 parts of 13°20′, gives the yoga: 333°20′–346°40′ is the 26th, Indra. It ends at 09:44, then Vaidhriti.

A karana is half a tithi: 6° of the Moon's lead, so the first half of Amavasya is Chatushpada and the second Nagava. Chatushpada ended at 22:50 Tue, when the lead reached 354°; Nagava runs until 09:05.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 06:04 to 06:05 Thu, so the hours after midnight still belong to Budhawara.

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: Simha gives Bhadrapada. The Sun enters Kanya on 16 Sep, inside the month. The next new moon, 10 Oct, finds it in Kanya and begins Ashwina.

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 10 Oct, with the Sun in Kanya, begins Ashwina. Until then this Krishna paksha reads Ashwina here, and Bhadrapada in the amanta count.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 17 Mar 1923, 15:51 Sat. Since then the Sun has moved 199.9° round the stars. Vikram Samvat numbers that year 1980; Shaka Samvat numbers it 1845.