Panchang in Sevan, Gegharkunik, Armenia Tue 1 Sep 2009

Shiva’s Pradosh puja is done in pradosha, the 3 muhurtas after sunset. Trayodashi runs from 15:01 on Tue 1 Sep to 17:23 on Wed 2 Sep, so only Tuesday’s pradosha (20:32–22:43) 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, 07:27 here. Ekadashi ended at 12:26 Mon, before it. Dwadashi ends at 15:01, when the lead reaches 144°. The lead passed 0° at the new moon of 20 Aug, so the Moon is waxing: Shukla paksha.

The night of Mon 31 Aug ran from sunset 20:33 Mon to sunrise 07:27, 10 h 54 m. Cut into 15 muhurtas of 43 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 07:27 to 20:32, splits into 8 choghadiyas of 1 h 38 m. Their names follow a fixed order that starts from the weekday, and each name is counted good, neutral or bad.

The night here, 20:32 to 07:28 Wed, 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 fixed stars divide the Moon's path into 27 nakshatras of 13°20′, each in 4 padas of 3°20′. Uttara Ashadha spans 266°40′–280°00′; the Moon entered its pada 3 at 273°20′. It leaves at 16:49, for Shravana.

Add the Sun's and the Moon's places among the stars: 134.8° + 275.4° = 410.2°, one full turn and 50.2°. 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 13:21, 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 01:45, when the lead reached 138°; Balava runs until 15:01.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 07:27 to 07:28 Wed, so the hours after midnight still belong to Mangalawara.

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: Simha gives Bhadrapada. The Sun enters Kanya on 16 Sep, inside the month. The next new moon, 18 Sep, finds it in Kanya and begins Ashwina.

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 20 Aug, with the Sun in Simha, began Bhadrapada. This Shukla paksha reads Bhadrapada in both counts.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 26 Mar 2009, 20:05 Thu. Since then the Sun has moved 152.7° round the stars. Vikram Samvat numbers that year 2066; Shaka Samvat numbers it 1931.