Panchang in Ipameri, Goiás, Brazil Wed 26 Nov 1913

Shiva’s worship centres on nishitha, the midnight muhurta. Chaturdashi runs from 03:38 on Wed 26 Nov to 00:59 on Thu 27 Nov, so only Wednesday night’s nishitha (23:31–00:15 Thu) 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: 336°–348° is the 29th, Krishna Chaturdashi. A day takes the tithi in force at its sunrise, 05:28 here. Trayodashi ended at 03:45, before it. Chaturdashi ends at 01:06 Thu, when the lead reaches 348°. The lead passed 180° at the full moon of 13 Nov, so the Moon is waning: Krishna paksha.

A day takes the tithi in force at its sunrise.

New Delhi · IST

Sunrise here, 06:52, came before Trayodashi ended at 12:15: this day reads Trayodashi.

Ipameri · UTC−3

Sunrise here, 05:28, came after Trayodashi ended at 03:45: this day reads Chaturdashi.

The night of Tue 25 Nov ran from sunset 18:31 Tue to sunrise 05:28, 10 h 56 m. Cut into 15 muhurtas of 43 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 05:28 to 18:32, splits into 8 choghadiyas of 1 h 38 m. Their names follow a fixed order that starts from the weekday, and each name is counted good, neutral or bad.

The night here, 18:32 to 05:28 Thu, splits into 8 choghadiyas of 1 h 22 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′. Swati spans 186°40′–200°00′; the Moon entered its pada 4 at 196°40′. It leaves at 09:05, for Vishakha.

Add the Sun's and the Moon's places among the stars: 220.8° + 197.8° = 418.6°, one full turn and 58.6°. Past the turn, cut into 27 parts of 13°20′, it gives the yoga: 53°20′–66°40′ is the 5th, Shobhana. It ends at 17:51, then Atiganda.

A karana is half a tithi: 6° of the Moon's lead, so the first half of Chaturdashi is Vishti and the second Shakuni. Vishti runs until 14:24, when the lead reaches 342°; Shakuni until 01:06 Thu.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 05:28 to 05:28 Thu, so the hours after midnight still belong to Budhawara.

An amanta month runs from new moon to new moon and takes its name from the rashi the Sun is in at the new moon that begins it: Tula gives Kartika. The Sun enters Vrishchika on 15 Nov, inside the month. The next new moon, 27 Nov, finds it in Vrishchika and begins Margashirsha.

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 27 Nov, with the Sun in Vrishchika, begins Margashirsha. Until then this Krishna paksha reads Margashirsha here, and Kartika in the amanta count.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 6 Apr 1913, 14:47 Sun. Since then the Sun has moved 227.1° round the stars. Vikram Samvat numbers that year 1970; Shaka Samvat numbers it 1835.