Panchang in Sevan, Gegharkunik, Armenia Tue 13 Sep 2050

Shiva’s Pradosh puja is done in pradosha, the 3 muhurtas after sunset. Trayodashi runs from 00:34 on Tue 13 Sep to 02:52 on Wed 14 Sep, so only Tuesday’s pradosha (19:12–21:29) 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: 324°–336° is the 28th, Krishna Trayodashi. A day takes the tithi in force at its sunrise, 06:38 here. Dwadashi ended at 00:34, before it. Trayodashi ends at 02:52 Wed, when the lead reaches 336°. The lead passed 180° at the full moon of 1 Sep, so the Moon is waning: Krishna paksha.

The night of Mon 12 Sep ran from sunset 19:14 Mon to sunrise 06:38, 11 h 24 m. Cut into 15 muhurtas of 45 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 06:38 to 19:12, splits into 8 choghadiyas of 1 h 34 m. Their names follow a fixed order that starts from the weekday, and each name is counted good, neutral or bad.

The night here, 19:12 to 06:39 Wed, splits into 8 choghadiyas of 1 h 25 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′. Ashlesha spans 106°40′–120°00′; the Moon entered its pada 2 at 110°. It leaves at 21:15, for Magha.

Add the Sun's and the Moon's places among the stars: 146° + 112.7° = 258.7°. The sum, cut into 27 parts of 13°20′, gives the yoga: 253°20′–266°40′ is the 20th, Shiva. It ends at 21:28, then Siddha.

A karana is half a tithi: 6° of the Moon's lead, so the first half of Trayodashi is Garaja and the second Vanija. Garaja runs until 13:42, when the lead reaches 330°; Vanija until 02:52 Wed.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 06:38 to 06:39 Wed, so the hours after midnight still belong to Mangalawara.

A month normally holds one sankranti, the Sun's entry into a new rashi. From 17 Aug 15:47 Wed to 16 Sep 07:49 Fri the Sun stayed in Simha, entering Kanya at 17 Sep 10:03 Sat, after the new moon. A month with no sankranti is Adhika Bhadrapada, before Bhadrapada 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 16 Sep, with the Sun in Simha, begins Bhadrapada (Adhik). Until then this Krishna paksha reads Bhadrapada (Adhik) here, and Bhadrapada (Adhik) in the amanta count.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 23 Mar 2050, 04:41 Wed. Since then the Sun has moved 168° round the stars. Vikram Samvat numbers that year 2107; Shaka Samvat numbers it 1972.