Panchang in Sevan, Gegharkunik, Armenia Mon 29 Jul 1985

Shiva’s Pradosh puja is done in pradosha, the 3 muhurtas after sunset. Trayodashi runs from 07:12 on Mon 29 Jul to 05:23 on Tue 30 Jul, so only Monday’s pradosha (21:18–23:13) falls within it. No text giving Pradosh Vrat’s time was found; pradosha is Tithika’s convention.

Pradosh Vrat: every date in Sevan

The Moon gains on the Sun about 12° a day. Each 12° of lead is one tithi: 132°–144° is the 12th, Shukla Dwadashi. A day takes the tithi in force at its sunrise, 06:53 here. Ekadashi ended at 09:11 Sun, before it. Dwadashi ends at 07:12, when the lead reaches 144°. The lead passed 0° at the new moon of 18 Jul, so the Moon is waxing: Shukla paksha.

A day takes the tithi in force at its sunrise. Trayodashi began at 07:12 and ended at 05:23 Tue, between the sunrises of 06:53 and 06:54 Tue. Monday reads Dwadashi and Tuesday reads Chaturdashi: Trayodashi is a kshaya tithi here.

The night of Sun 28 Jul ran from sunset 21:19 Sun to sunrise 06:53, 9 h 34 m. Cut into 15 muhurtas of 38 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 06:53 to 21:18, splits into 8 choghadiyas of 1 h 48 m. Their names follow a fixed order that starts from the weekday, and each name is counted good, neutral or bad.

The night here, 21:18 to 06:54 Tue, splits into 8 choghadiyas of 1 h 12 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′. Mula spans 240°00′–253°20′; the Moon entered its pada 2 at 243°20′. It leaves at 19:21, for Purva Ashadha.

Add the Sun's and the Moon's places among the stars: 102.3° + 246.1° = 348.4°. The sum, cut into 27 parts of 13°20′, gives the yoga: 346°40′–360°00′ is the 27th, Vaidhriti. It ends at 01:40 Tue, then Vishkambha.

A karana is half a tithi: 6° of the Moon's lead, so the first half of Dwadashi is Bava and the second Balava. Bava ended at 20:10 Sun, when the lead reached 138°; Balava runs until 07:12.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 06:53 to 06:54 Tue, so the hours after midnight still belong to Somawara.

A month normally holds one sankranti, the Sun's entry into a new rashi. From 18 Jul 04:56 Thu to 16 Aug 15:05 Fri the Sun stayed in Karka, entering Simha at 16 Aug 19:23 Fri, after the new moon. A month with no sankranti is Adhika Shravana, before Shravana 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 18 Jul, with the Sun in Karka, began Shravana (Adhik). This Shukla paksha reads Shravana (Adhik) in both counts.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 21 Mar 1985, 15:58 Thu. Since then the Sun has moved 125.1° round the stars. Vikram Samvat numbers that year 2042; Shaka Samvat numbers it 1907.