Panchang in Sevan, Gegharkunik, Armenia Tue 10 Apr 1945

Shiva’s Pradosh puja is done in pradosha, the 3 muhurtas after sunset. Trayodashi runs from 02:40 on Tue 10 Apr to 23:13 on Tue 10 Apr, so only Tuesday’s pradosha (18:33–20:44) falls within it. No text giving Pradosh Vrat’s time was found; pradosha is Tithika’s convention.

Pradosh Vrat: every date in Sevan

Shiva’s worship centres on nishitha, the midnight muhurta. Chaturdashi runs from 23:13 on Tue 10 Apr to 19:25 on Wed 11 Apr, so only Tuesday night’s nishitha (23:39–00:22 Wed) falls within it. No text giving Masik Shivratri’s time was found; nishitha is Tithika’s convention.

Masik Shivratri: 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, 05:30 here. Dwadashi ended at 02:40, before it. Trayodashi ends at 23:13, when the lead reaches 336°. The lead passed 180° at the full moon of 28 Mar, so the Moon is waning: Krishna paksha.

The night of Mon 9 Apr ran from sunset 18:32 Mon to sunrise 05:30, 10 h 58 m. Cut into 15 muhurtas of 43 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 05:30 to 18:33, 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 night here, 18:33 to 05:28 Wed, splits into 8 choghadiyas of 1 h 21 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′. Purva Bhadrapada spans 320°00′–333°20′; the Moon entered its pada 1 at 320°. It leaves at 22:57, for Uttara Bhadrapada.

Add the Sun's and the Moon's places among the stars: 356.8° + 322.4° = 679.2°, one full turn and 319.2°. Past the turn, cut into 27 parts of 13°20′, it gives the yoga: 306°40′–320°00′ is the 24th, Shukla. It ends at 06:44, then Brahma.

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 13:00, when the lead reaches 330°; Vanija until 23:13.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 05:30 to 05:28 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 14 Mar 06:50 Wed to 12 Apr 15:29 Thu the Sun stayed in Meena, entering Mesha at 13 Apr 12:29 Fri, after the new moon. A month with no sankranti is Adhika Chaitra, before Chaitra 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 Apr, with the Sun in Meena, begins Chaitra (Adhik). Until then this Krishna paksha reads Chaitra (Adhik) here, and Chaitra (Adhik) in the amanta count.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 14 Mar 1945, 06:50 Wed. Since then the Sun has moved 26.7° round the stars. Vikram Samvat numbers that year 2002; Shaka Samvat numbers it 1867.