Panchang in Sevan, Gegharkunik, Armenia Wed 24 Feb 1926

Shiva’s Pradosh puja is done in pradosha, the 3 muhurtas after sunset. Trayodashi runs from 11:58 on Wed 24 Feb to 14:41 on Thu 25 Feb, so only Wednesday’s pradosha (17:44–20:20) 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, 06:42 here. Ekadashi ended at 09:21 Tue, before it. Dwadashi ends at 11:58, when the lead reaches 144°. The lead passed 0° at the new moon of 12 Feb, so the Moon is waxing: Shukla paksha.

The night of Tue 23 Feb ran from sunset 17:43 Tue to sunrise 06:42, 12 h 59 m. Cut into 15 muhurtas of 51 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 06:42 to 17:44, splits into 8 choghadiyas of 1 h 22 m. Their names follow a fixed order that starts from the weekday, and each name is counted good, neutral or bad.

The night here, 17:44 to 06:41 Thu, splits into 8 choghadiyas of 1 h 37 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′. Pushya spans 93°20′–106°40′; the Moon entered its pada 1 at 93°20′. It leaves at 09:19 Thu, for Ashlesha.

Add the Sun's and the Moon's places among the stars: 312° + 93.6° = 405.6°, one full turn and 45.6°. Past the turn, cut into 27 parts of 13°20′, it gives the yoga: 40°00′–53°20′ is the 4th, Saubhagya. It ends at 21:16, then Shobhana.

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 22:38 Tue, when the lead reached 138°; Balava runs until 11:58.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 06:42 to 06:41 Thu, so the hours after midnight still belong to Budhawara.

A month normally holds one sankranti, the Sun's entry into a new rashi. From 12 Feb 20:20 Fri to 14 Mar 06:20 Sun the Sun stayed in Kumbha, entering Meena at 14 Mar 06:53 Sun, after the new moon. A month with no sankranti is Adhika Phalguna, before Phalguna 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 12 Feb, with the Sun in Kumbha, began Phalguna (Adhik). This Shukla paksha reads Phalguna (Adhik) in both counts.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 24 Mar 1925, 17:02 Tue. Since then the Sun has moved 331.4° round the stars. Vikram Samvat numbers that year 1982; Shaka Samvat numbers it 1847.