Panchang in Ipameri, Goiás, Brazil Mon 14 Oct 2058

Shiva’s Pradosh puja is done in pradosha, the 3 muhurtas after sunset. Trayodashi runs from 07:04 on Mon 14 Oct to 08:34 on Tue 15 Oct, so only Monday’s pradosha (18:13–20:31) 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: 312°–324° is the 27th, Krishna Dwadashi. A day takes the tithi in force at its sunrise, 05:44 here. Ekadashi ended at 05:08 Sun, before it. Dwadashi ends at 07:04, when the lead reaches 324°. The lead passed 180° at the full moon of 1 Oct, so the Moon is waning: Krishna paksha.

A day takes the tithi in force at its sunrise. Dwadashi began at 05:08 Sun, before sunrise at 05:45 Sun, and ends at 07:04, after the next sunrise at 05:44. Both days read Dwadashi: it is a vriddhi tithi here.

The night of Sun 13 Oct ran from sunset 18:12 Sun to sunrise 05:44, 11 h 32 m. Cut into 15 muhurtas of 46 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 05:44 to 18:13, splits into 8 choghadiyas of 1 h 33 m. Their names follow a fixed order that starts from the weekday, and each name is counted good, neutral or bad.

The night here, 18:13 to 05:43 Tue, splits into 8 choghadiyas of 1 h 26 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 Phalguni spans 133°20′–146°40′; the Moon entered its pada 2 at 136°40′. It leaves at 18:53, for Uttara Phalguni.

Add the Sun's and the Moon's places among the stars: 176.6° + 139.9° = 316.5°. The sum, cut into 27 parts of 13°20′, gives the yoga: 306°40′–320°00′ is the 24th, Shukla. It ends at 12:00, then Brahma.

A karana is half a tithi: 6° of the Moon's lead, so the first half of Dwadashi is Kaulava and the second Taitila. Kaulava ended at 18:09 Sun, when the lead reached 318°; Taitila runs until 07:04.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 05:44 to 05:43 Tue, so the hours after midnight still belong to Somawara.

A month normally holds one sankranti, the Sun's entry into a new rashi. From 17 Sep 19:18 Tue to 17 Oct 10:05 Thu the Sun stayed in Kanya, entering Tula at 17 Oct 16:18 Thu, 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 Oct, with the Sun in Kanya, begins Ashwina (Adhik). Until then this Krishna paksha reads Ashwina (Adhik) here, and Ashwina (Adhik) in the amanta count.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 24 Mar 2058, 06:50 Sun. Since then the Sun has moved 197.3° round the stars. Vikram Samvat numbers that year 2115; Shaka Samvat numbers it 1980.