Panchang in Ipameri, Goiás, Brazil Tue 27 Jun 1950

Shiva’s Pradosh puja is done in pradosha, the 3 muhurtas after sunset. Trayodashi runs from 02:50 on Tue 27 Jun to 23:30 on Tue 27 Jun, so only Tuesday’s pradosha (17:47–20:23) 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 02:50, before it. Trayodashi ends at 23:30, 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.

New Delhi · IST

Sunrise here, 05:25, came before Dwadashi ended at 11:20: this day reads Dwadashi.

Ipameri · UTC−3

Sunrise here, 06:43, came after Dwadashi ended at 02:50: this day reads Trayodashi.

The night of Mon 26 Jun ran from sunset 17:47 Mon 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 Wed, 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 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 2 at 216°40′. It leaves at 20:16, for Jyeshtha.

Add the Sun's and the Moon's places among the stars: 72° + 218.3° = 290.3°. The sum, cut into 27 parts of 13°20′, gives the yoga: 280°00′–293°20′ is the 22nd, Sadhya. It ends at 11:22, 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 13:11, when the lead reaches 150°; Taitila until 23:30.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 06:43 to 06:43 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 15 Jun 12:52 Thu to 15 Jul 02:05 Sat the Sun stayed in Mithuna, entering Karka at 16 Jul 03:41 Sun, 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 1950, 13:20 Sat. Since then the Sun has moved 97.7° round the stars. Vikram Samvat numbers that year 2007; Shaka Samvat numbers it 1872.