Panchang in Ipameri, Goiás, Brazil Wed 29 Sep 2077

Shiva’s Pradosh puja is done in pradosha, the 3 muhurtas after sunset. Trayodashi runs from 09:31 on Wed 29 Sep to 06:03 on Thu 30 Sep, so only Wednesday’s pradosha (18:10–20:31) falls within it. No text giving Pradosh Vrat’s time was found; pradosha is Tithika’s convention.

Pradosh Vrat: every date in Ipameri

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, 05:55 here. Ekadashi ended at 12:30 Tue, before it. Dwadashi ends at 09:31, when the lead reaches 144°. The lead passed 0° at the new moon of 17 Sep, so the Moon is waxing: Shukla paksha.

The night of Tue 28 Sep ran from sunset 18:09 Tue to sunrise 05:55, 11 h 46 m. Cut into 15 muhurtas of 47 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 05:55 to 18:10, splits into 8 choghadiyas of 1 h 31 m. Their names follow a fixed order that starts from the weekday, and each name is counted good, neutral or bad.

The night here, 18:10 to 05:55 Thu, splits into 8 choghadiyas of 1 h 28 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′. Dhanishtha spans 293°20′–306°40′; the Moon entered its pada 4 at 303°20′. It leaves at 10:28, for Shatabhisha.

Add the Sun's and the Moon's places among the stars: 161.9° + 303.9° = 465.8°, one full turn and 105.8°. Past the turn, cut into 27 parts of 13°20′, it gives the yoga: 93°20′–106°40′ is the 8th, Dhriti. It ends at 07:15, then Shula.

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 23:05 Tue, when the lead reached 138°; Balava runs until 09:31.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 05:55 to 05:55 Thu, so the hours after midnight still belong to Budhawara.

A month normally holds one sankranti, the Sun's entry into a new rashi. From 17 Sep 02:54 Fri to 16 Oct 20:08 Sat the Sun stayed in Kanya, entering Tula at 17 Oct 13:15 Sun, after the new moon. A month with no sankranti is Adhika Ashwina, before Ashwina 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 17 Sep, with the Sun in Kanya, began Ashwina (Adhik). This Shukla paksha reads Ashwina (Adhik) in both counts.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 24 Mar 2077, 05:25 Wed. Since then the Sun has moved 182.5° round the stars. Vikram Samvat numbers that year 2134; Shaka Samvat numbers it 1999.