Panchang in Cuenca, Azuay, Ecuador Sun 30 Jul 2023

Shiva’s Pradosh puja is done in pradosha, the 3 muhurtas after sunset. Trayodashi runs from 00:04 on Sun 30 Jul to 20:57 on Sun 30 Jul, so only Sunday’s pradosha (18:22–20:46) falls within it. No text giving Pradosh Vrat’s time was found; pradosha is Tithika’s convention.

Pradosh Vrat: every date in Cuenca

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, 06:22 here. Dwadashi ended at 00:04, before it. Trayodashi ends at 20:57, 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 10:34: this day reads Dwadashi.

Cuenca · UTC−5

Sunrise here, 06:22, came after Dwadashi ended at 00:04: this day reads Trayodashi.

The night of Sat 29 Jul ran from sunset 18:22 Sat to sunrise 06:22, 12 h 0 m. Cut into 15 muhurtas of 48 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 06:22 to 18:22, 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 night here, 18:22 to 06:22 Mon, 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 4 at 250°. It leaves at 11:02, for Purva Ashadha.

Add the Sun's and the Moon's places among the stars: 102.9° + 250.5° = 353.4°. The sum, cut into 27 parts of 13°20′, gives the yoga: 346°40′–360°00′ is the 27th, Vaidhriti. It ends at 16:31, 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 10:35, when the lead reaches 150°; Taitila until 20:57.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 06:22 to 06:22 Mon, so the hours after midnight still belong to Raviwara.

A month normally holds one sankranti, the Sun's entry into a new rashi. From 17 Jul 13:31 Mon to 16 Aug 04:38 Wed the Sun stayed in Karka, entering Simha at 17 Aug 03:02 Thu, 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: 21 Mar 2023, 12:23 Tue. Since then the Sun has moved 126.3° round the stars. Vikram Samvat numbers that year 2080; Shaka Samvat numbers it 1945.