Panchang in Ipameri, Goiás, Brazil Mon 11 Jun 2018

Shiva’s Pradosh puja is done in pradosha, the 3 muhurtas after sunset. Trayodashi runs from 01:34 on Mon 11 Jun to 23:04 on Mon 11 Jun, so only Monday’s pradosha (17:45–20:20) falls within it. No text giving Pradosh Vrat’s time was found; pradosha is Tithika’s convention.

Pradosh Vrat: every date in Ipameri

Shiva’s worship centres on nishitha, the midnight muhurta. Chaturdashi runs from 23:04 on Mon 11 Jun to 20:04 on Tue 12 Jun, so only Monday night’s nishitha (23:46–00:38 Tue) falls within it. No text giving Masik Shivratri’s time was found; nishitha is Tithika’s convention.

Masik Shivratri: every date in Ipameri

The Moon gains on the Sun about 12° a day. Each 12° of lead is one tithi: 324°–336° is the 28th, Krishna Trayodashi. A day takes the tithi in force at its sunrise, 06:39 here. Dwadashi ended at 01:34, before it. Trayodashi ends at 23:04, when the lead reaches 336°. The lead passed 180° at the full moon of 29 May, so the Moon is waning: Krishna paksha.

A day takes the tithi in force at its sunrise.

New Delhi · IST

Sunrise here, 05:22, came before Dwadashi ended at 10:04: this day reads Dwadashi.

Ipameri · UTC−3

Sunrise here, 06:39, came after Dwadashi ended at 01:34: this day reads Trayodashi.

The night of Sun 10 Jun ran from sunset 17:44 Sun to sunrise 06:39, 12 h 55 m. Cut into 15 muhurtas of 51 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 06:39 to 17:45, 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, 17:45 to 06:40 Tue, 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′. Bharani spans 13°20′–26°40′; the Moon entered its pada 3 at 20°. It leaves at 12:35, for Krittika.

Add the Sun's and the Moon's places among the stars: 56.3° + 23.1° = 79.4°. The sum, cut into 27 parts of 13°20′, gives the yoga: 66°40′–80°00′ is the 6th, Atiganda. It ends at 07:31, then Sukarma.

A karana is half a tithi: 6° of the Moon's lead, so the first half of Trayodashi is Garaja and the second Vanija. Garaja runs until 12:23, when the lead reaches 330°; Vanija until 23:04.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 06:39 to 06:40 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 15 May 08:47 Tue to 13 Jun 16:43 Wed the Sun stayed in Vrishabha, entering Mithuna at 15 Jun 03:06 Fri, after the new moon. A month with no sankranti is Adhika Jyeshtha, before Jyeshtha 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 13 Jun, with the Sun in Vrishabha, begins Jyeshtha (Adhik). Until then this Krishna paksha reads Jyeshtha (Adhik) here, and Jyeshtha (Adhik) in the amanta count.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 17 Mar 2018, 10:11 Sat. Since then the Sun has moved 83.5° round the stars. Vikram Samvat numbers that year 2075; Shaka Samvat numbers it 1940.