Panchang in Sevan, Gegharkunik, Armenia Tue 7 Nov 1972

The tilak is applied in aparahna, the fourth fifth of the day. Dwitiya runs from 07:51 on Tue 7 Nov to 10:29 on Wed 8 Nov, so only Tuesday’s aparahna (13:44–15:47) falls within it. No text giving Bhai Dooj’s time was found; aparahna is Tithika’s convention.

Bhai Dooj: every date in Sevan

The Moon gains on the Sun about 12° a day. Each 12° of lead is one tithi: 0°–12° is the 1st, Shukla Pratipada. A day takes the tithi in force at its sunrise, 07:36 here. Amavasya ended at 05:21 Mon, before it. Pratipada ends at 07:51, when the lead reaches 12°. The lead passed 0° at the new moon of 6 Nov, so the Moon is waxing: Shukla paksha.

A day takes the tithi in force at its sunrise. Pratipada began at 05:21 Mon, before sunrise at 07:35 Mon, and ends at 07:51, after the next sunrise at 07:36. Both days read Pratipada: it is a vriddhi tithi here.

The night of Mon 6 Nov ran from sunset 17:51 Mon to sunrise 07:36, 13 h 45 m. Cut into 15 muhurtas of 55 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 07:36 to 17:50, splits into 8 choghadiyas of 1 h 16 m. Their names follow a fixed order that starts from the weekday, and each name is counted good, neutral or bad.

The night here, 17:50 to 07:37 Wed, splits into 8 choghadiyas of 1 h 43 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′. Vishakha spans 200°00′–213°20′; the Moon entered its pada 4 at 210°. It leaves at 07:48, for Anuradha.

Add the Sun's and the Moon's places among the stars: 201.3° + 213.2° = 414.5°, one full turn and 54.5°. Past the turn, cut into 27 parts of 13°20′, it gives the yoga: 53°20′–66°40′ is the 5th, Shobhana. It ends at 06:13 Wed, then Atiganda.

A karana is half a tithi: 6° of the Moon's lead, so the first half of Pratipada is Kinstughna and the second Bava. Kinstughna ended at 18:35 Mon, when the lead reached 6°; Bava runs until 07:51.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 07:36 to 07:37 Wed, so the hours after midnight still belong to Mangalawara.

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 15 Nov, inside the month. The next new moon, 6 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 6 Nov, with the Sun in Tula, began Kartika. This Shukla paksha reads Kartika in both counts.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 15 Mar 1972, 15:34 Wed. Since then the Sun has moved 229.8° round the stars. Vikram Samvat numbers that year 2029; Shaka Samvat numbers it 1894.