Panchang in Sevan, Gegharkunik, Armenia Mon 11 Mar 1907

Shiva’s Pradosh puja is done in pradosha, the 3 muhurtas after sunset. Trayodashi runs from 14:06 on Mon 11 Mar to 12:09 on Tue 12 Mar, so only Monday’s pradosha (17:59–20:26) 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, 06:20 here. Ekadashi ended at 16:13 Sun, before it. Dwadashi ends at 14:08, when the lead reaches 324°. The lead passed 180° at the full moon of 28 Feb, so the Moon is waning: Krishna paksha.

The night of Sun 10 Mar ran from sunset 17:59 Sun to sunrise 06:20, 12 h 21 m. Cut into 15 muhurtas of 49 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 06:20 to 18:01, 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 night here, 18:01 to 06:18 Tue, 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 fixed stars divide the Moon's path into 27 nakshatras of 13°20′, each in 4 padas of 3°20′. Shravana spans 280°00′–293°20′; the Moon entered its pada 2 at 283°20′. It leaves at 17:48, for Dhanishtha.

Add the Sun's and the Moon's places among the stars: 326.9° + 286.6° = 613.5°, one full turn and 253.5°. Past the turn, cut into 27 parts of 13°20′, it gives the yoga: 253°20′–266°40′ is the 20th, Shiva. It ends at 03:22 Tue, then Siddha.

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 03:10, when the lead reached 318°; Taitila runs until 14:08.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 06:20 to 06:18 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 12 Feb 20:42 Tue to 14 Mar 09:04 Thu the Sun stayed in Kumbha, entering Meena at 14 Mar 09:59 Thu, 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 14 Mar, with the Sun in Kumbha, begins Phalguna (Adhik). Until then this Krishna paksha reads Phalguna (Adhik) here, and Phalguna (Adhik) in the amanta count.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 25 Mar 1906, 02:51 Sun. Since then the Sun has moved 346° round the stars. Vikram Samvat numbers that year 1963; Shaka Samvat numbers it 1828.