Panchang in Sevan, Gegharkunik, Armenia Sun 15 Apr 2091

The Sun enters Mesha at 23:46 Sat, after sunset (19:38 Sat), so the next day keeps it: Sun 15 Apr. No text giving Mesha Sankranti’s time was found; sankranti is Tithika’s convention.

Mesha Sankranti: every date in Sevan

Shiva’s Pradosh puja is done in pradosha, the 3 muhurtas after sunset. Trayodashi began at 17:37 on Sun 15 Apr, before that evening’s pradosha, and ended at 20:11 on Mon 16 Apr, partway into the next. The Nirnayasindhu takes the evening Trayodashi fills: Sun 15 Apr. 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, 06:21 here. Ekadashi ended at 15:14 Sat, before it. Dwadashi ends at 17:37, when the lead reaches 324°. The lead passed 180° at the full moon of 4 Apr, so the Moon is waning: Krishna paksha.

The night of Sat 14 Apr ran from sunset 19:38 Sat to sunrise 06:21, 10 h 43 m. Cut into 15 muhurtas of 42 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 06:21 to 19:39, splits into 8 choghadiyas of 1 h 39 m. Their names follow a fixed order that starts from the weekday, and each name is counted good, neutral or bad.

The night here, 19:39 to 06:20 Mon, splits into 8 choghadiyas of 1 h 20 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 4 at 316°40′. It leaves at 08:03, for Purva Bhadrapada.

Add the Sun's and the Moon's places among the stars: 0.3° + 319.2° = 319.5°. The sum, cut into 27 parts of 13°20′, gives the yoga: 306°40′–320°00′ is the 24th, Shukla. It ends at 07:25, 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 04:23, when the lead reached 318°; Taitila runs until 17:37.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 06:21 to 06:20 Mon, so the hours after midnight still belong to Raviwara.

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: Meena gives Chaitra. The Sun enters Mesha on 14 Apr, inside the month. The next new moon, 19 Apr, finds it in Mesha and begins Vaishakha.

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 19 Apr, with the Sun in Mesha, begins Vaishakha. Until then this Krishna paksha reads Vaishakha here, and Chaitra in the amanta count.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 20 Mar 2091, 07:47 Tue. Since then the Sun has moved 25.6° round the stars. Vikram Samvat numbers that year 2148; Shaka Samvat numbers it 2013.