Panchang in Davinópolis, Maranhão, Brazil Thu 29 Jul 2004

Shiva’s Pradosh puja is done in pradosha, the 3 muhurtas after sunset. Trayodashi runs from 01:36 on Thu 29 Jul to 22:07 on Thu 29 Jul, so only Thursday’s pradosha (18:12–20:37) falls within it. No text giving Pradosh Vrat’s time was found; pradosha is Tithika’s convention.

Pradosh Vrat: every date in Davinópolis

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, 06:19 here. Dwadashi ended at 01:36, before it. Trayodashi ends at 22:07, when the lead reaches 156°. The lead passed 0° at the new moon of 17 Jul, so the Moon is waxing: Shukla paksha.

A day takes the tithi in force at its sunrise.

New Delhi · IST

Sunrise here, 05:41, came before Dwadashi ended at 10:06: this day reads Dwadashi.

Davinópolis · UTC−3

Sunrise here, 06:19, came after Dwadashi ended at 01:36: this day reads Trayodashi.

The night of Wed 28 Jul ran from sunset 18:12 Wed to sunrise 06:19, 12 h 7 m. Cut into 15 muhurtas of 48 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 06:19 to 18:12, splits into 8 choghadiyas of 1 h 29 m. Their names follow a fixed order that starts from the weekday, and each name is counted good, neutral or bad.

The night here, 18:12 to 06:19 Fri, splits into 8 choghadiyas of 1 h 30 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′. Mula spans 240°00′–253°20′; the Moon entered its pada 3 at 246°40′. It leaves at 12:35, for Purva Ashadha.

Add the Sun's and the Moon's places among the stars: 102.7° + 249.4° = 352.1°. The sum, cut into 27 parts of 13°20′, gives the yoga: 346°40′–360°00′ is the 27th, Vaidhriti. It ends at 18:13, then Vishkambha.

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 11:52, when the lead reaches 150°; Taitila until 22:07.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 06:19 to 06:19 Fri, so the hours after midnight still belong to Guruwara.

A month normally holds one sankranti, the Sun's entry into a new rashi. From 17 Jul 08:23 Sat to 15 Aug 22:23 Sun the Sun stayed in Karka, entering Simha at 16 Aug 08:18 Mon, after the new moon. A month with no sankranti is Adhika Shravana, before Shravana 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 Jul, with the Sun in Karka, began Shravana (Adhik). This Shukla paksha reads Shravana (Adhik) in both counts.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 20 Mar 2004, 19:41 Sat. Since then the Sun has moved 126° round the stars. Vikram Samvat numbers that year 2061; Shaka Samvat numbers it 1926.