Panchang in Ipameri, Goiás, Brazil Wed 26 Jun 1912

Shiva’s Pradosh puja is done in pradosha, the 3 muhurtas after sunset. Trayodashi runs from 05:40 on Wed 26 Jun to 06:57 on Thu 27 Jun, so only Wednesday’s pradosha (17:41–20:16) 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: 144°–156° is the 13th, Shukla Trayodashi. A day takes the tithi in force at its sunrise, 06:43 here. Dwadashi ended at 05:46, before it. Trayodashi ends at 07:03 Thu, when the lead reaches 156°. The lead passed 0° at the new moon of 15 Jun, so the Moon is waxing: Shukla paksha.

A day takes the tithi in force at its sunrise. Trayodashi began at 05:46, before sunrise at 06:43, and ends at 07:03 Thu, after the next sunrise at 06:43 Thu. Both days read Trayodashi: it is a vriddhi tithi here.

A day takes the tithi in force at its sunrise.

New Delhi · IST

Sunrise here, 05:24, came before Dwadashi ended at 14:16: this day reads Dwadashi.

Ipameri · UTC−3

Sunrise here, 06:43, came after Dwadashi ended at 05:46: this day reads Trayodashi.

The night of Tue 25 Jun ran from sunset 17:47 Tue to sunrise 06:43, 12 h 56 m. Cut into 15 muhurtas of 51 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 06:43 to 17:47, splits into 8 choghadiyas of 1 h 23 m. Their names follow a fixed order that starts from the weekday, and each name is counted good, neutral or bad.

The night here, 17:47 to 06:43 Thu, splits into 8 choghadiyas of 1 h 36 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′. Anuradha spans 213°20′–226°40′; the Moon entered its pada 1 at 213°20′. It leaves at 03:02 Thu, for Jyeshtha.

Add the Sun's and the Moon's places among the stars: 71.8° + 216.2° = 288°. The sum, cut into 27 parts of 13°20′, gives the yoga: 280°00′–293°20′ is the 22nd, Sadhya. It ends at 16:23, then Shubha.

A karana is half a tithi: 6° of the Moon's lead, so the first half of Trayodashi is Kaulava and the second Taitila. Kaulava runs until 18:22, when the lead reaches 150°; Taitila until 07:03 Thu.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 06:43 to 06:43 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 15 Jun 03:23 Sat to 14 Jul 10:12 Sun the Sun stayed in Mithuna, entering Karka at 15 Jul 10:02 Mon, after the new moon. A month with no sankranti is Adhika Ashadha, before Ashadha 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 15 Jun, with the Sun in Mithuna, began Ashadha (Adhik). This Shukla paksha reads Ashadha (Adhik) in both counts.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 18 Mar 1912, 19:08 Mon. Since then the Sun has moved 96.5° round the stars. Vikram Samvat numbers that year 1969; Shaka Samvat numbers it 1834.