Panchang in Sevan, Gegharkunik, Armenia Mon 20 Sep 1926

Anant Chaturdashi follows the tithi at sunrise. Chaturdashi begins at 06:58 on Mon 20 Sep, after that sunrise, and ends at 03:11 on Tue 21 Sep, before the next: it holds no sunrise. A tithi that holds no sunrise is kept on the day it is current: Mon 20 Sep. No text giving Anant Chaturdashi’s time was found; sunrise is Tithika’s convention.

Anant Chaturdashi: every date in Sevan

The Moon gains on the Sun about 12° a day. Each 12° of lead is one tithi: 144°–156° is the 13th, Shukla Trayodashi. A day takes the tithi in force at its sunrise, 05:44 here. Dwadashi ended at 10:29 Sun, before it. Trayodashi ends at 06:58, when the lead reaches 156°. The lead passed 0° at the new moon of 7 Sep, so the Moon is waxing: Shukla paksha.

A day takes the tithi in force at its sunrise. Chaturdashi began at 06:58 and ended at 03:11 Tue, between the sunrises of 05:44 and 05:45 Tue. Monday reads Trayodashi and Tuesday reads Purnima: Chaturdashi is a kshaya tithi here.

The night of Sun 19 Sep ran from sunset 18:03 Sun to sunrise 05:44, 11 h 41 m. Cut into 15 muhurtas of 46 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 05:44 to 18:02, splits into 8 choghadiyas of 1 h 32 m. Their names follow a fixed order that starts from the weekday, and each name is counted good, neutral or bad.

The night here, 18:02 to 05:45 Tue, splits into 8 choghadiyas of 1 h 27 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′. Shatabhisha spans 306°40′–320°00′; the Moon entered its pada 1 at 306°40′. It leaves at 23:22, for Purva Bhadrapada.

Add the Sun's and the Moon's places among the stars: 153.6° + 308.8° = 462.4°, one full turn and 102.4°. Past the turn, cut into 27 parts of 13°20′, it gives the yoga: 93°20′–106°40′ is the 8th, Dhriti. It ends at 12:06, then Shula.

A karana is half a tithi: 6° of the Moon's lead, so the first half of Trayodashi is Kaulava and the second Taitila. Kaulava ended at 20:46 Sun, when the lead reached 150°; Taitila runs until 06:58.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 05:44 to 05:45 Tue, so the hours after midnight still belong to Somawara.

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, 7 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 7 Sep, with the Sun in Simha, began Bhadrapada. This Shukla paksha reads Bhadrapada in both counts.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 12 Apr 1926, 15:56 Mon. Since then the Sun has moved 154.6° round the stars. Vikram Samvat numbers that year 1983; Shaka Samvat numbers it 1848.