Panchang in Myjava, Trenčín Region, Slovakia Sat 23 May 1964

Shiva’s Pradosh puja is done in pradosha, the 3 muhurtas after sunset. Trayodashi runs from 04:05 on Sat 23 May to 05:56 on Sun 24 May, so only Saturday’s pradosha (19:34–21:15) falls within it. No text giving Pradosh Vrat’s time was found; pradosha is Tithika’s convention.

Pradosh Vrat: every date in Myjava

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, 03:58 here. Ekadashi ended at 02:39 Fri, before it. Dwadashi ends at 04:05, when the lead reaches 144°. The lead passed 0° at the new moon of 11 May, so the Moon is waxing: Shukla paksha.

A day takes the tithi in force at its sunrise. Dwadashi began at 02:39 Fri, before sunrise at 03:59 Fri, and ends at 04:05, after the next sunrise at 03:58. Both days read Dwadashi: it is a vriddhi tithi here.

The night of Fri 22 May ran from sunset 19:33 Fri to sunrise 03:58, 8 h 25 m. Cut into 15 muhurtas of 33 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 03:58 to 19:34, splits into 8 choghadiyas of 1 h 57 m. Their names follow a fixed order that starts from the weekday, and each name is counted good, neutral or bad.

The night here, 19:34 to 03:57 Sun, splits into 8 choghadiyas of 1 h 2 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′. Chitra spans 173°20′–186°40′; the Moon entered its pada 3 at 180°. It leaves at 12:00, for Swati.

Add the Sun's and the Moon's places among the stars: 38.7° + 182.6° = 221.3°. The sum, cut into 27 parts of 13°20′, gives the yoga: 213°20′–226°40′ is the 17th, Vyatipata. It ends at 13:53, then Variyana.

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 15:19 Fri, when the lead reached 138°; Balava runs until 04:05.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 03:58 to 03:57 Sun, so the hours after midnight still belong to Shaniwara.

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: Mesha gives Vaishakha. The Sun enters Vrishabha on 14 May, inside the month. The next new moon, 10 Jun, finds it in Vrishabha and begins Jyeshtha.

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 11 May, with the Sun in Mesha, began Vaishakha. This Shukla paksha reads Vaishakha in both counts.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 14 Mar 1964, 03:13 Sat. Since then the Sun has moved 68.5° round the stars. Vikram Samvat numbers that year 2021; Shaka Samvat numbers it 1886.