Panchang in Sevan, Gegharkunik, Armenia Sun 14 Oct 2001

Shiva’s Pradosh puja is done in pradosha, the 3 muhurtas after sunset. Trayodashi runs from 10:11 on Sun 14 Oct to 06:52 on Mon 15 Oct, so only Sunday’s pradosha (19:21–21:55) 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: 312°–324° is the 27th, Krishna Dwadashi. A day takes the tithi in force at its sunrise, 08:09 here. Ekadashi ended at 13:20 Sat, before it. Dwadashi ends at 10:11, when the lead reaches 324°. The lead passed 180° at the full moon of 2 Oct, so the Moon is waning: Krishna paksha.

A day takes the tithi in force at its sunrise. Trayodashi began at 10:11 and ended at 06:52 Mon, between the sunrises of 08:09 and 08:10 Mon. Sunday reads Dwadashi and Monday reads Chaturdashi: Trayodashi is a kshaya tithi here.

The night of Sat 13 Oct ran from sunset 19:23 Sat to sunrise 08:09, 12 h 46 m. Cut into 15 muhurtas of 51 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 08:09 to 19:21, splits into 8 choghadiyas of 1 h 24 m. Their names follow a fixed order that starts from the weekday, and each name is counted good, neutral or bad.

The night here, 19:21 to 08:10 Mon, splits into 8 choghadiyas of 1 h 36 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′. Purva Phalguni spans 133°20′–146°40′; the Moon entered its pada 2 at 136°40′. It leaves at 19:14, for Uttara Phalguni.

Add the Sun's and the Moon's places among the stars: 177° + 139.8° = 316.8°. The sum, cut into 27 parts of 13°20′, gives the yoga: 306°40′–320°00′ is the 24th, Shukla. It ends at 13:03, then Brahma.

A karana is half a tithi: 6° of the Moon's lead, so the first half of Dwadashi is Kaulava and the second Taitila. Kaulava ended at 23:47 Sat, when the lead reached 318°; Taitila runs until 10:11.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 08:09 to 08:10 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 17 Sep 15:27 Mon to 17 Oct 00:23 Wed the Sun stayed in Kanya, entering Tula at 17 Oct 09:37 Wed, after the new moon. A month with no sankranti is Adhika Ashwina, before Ashwina 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 17 Oct, with the Sun in Kanya, begins Ashwina (Adhik). Until then this Krishna paksha reads Ashwina (Adhik) here, and Ashwina (Adhik) in the amanta count.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 25 Mar 2001, 06:21 Sun. Since then the Sun has moved 196.4° round the stars. Vikram Samvat numbers that year 2058; Shaka Samvat numbers it 1923.