Panchang in Ipameri, Goiás, Brazil Sun 23 Oct 1904

Sharad Purnima’s night centres on nishitha, the midnight muhurta. Purnima runs from 05:57 on Sun 23 Oct to 07:49 on Mon 24 Oct, so only Sunday night’s nishitha (23:27–00:13 Mon) falls within it. No text giving Sharad Purnima’s time was found; nishitha is Tithika’s convention.

Sharad Purnima: every date in Ipameri

The Moon gains on the Sun about 12° a day. Each 12° of lead is one tithi: 156°–168° is the 14th, Shukla Chaturdashi. A day takes the tithi in force at its sunrise, 05:39 here. Trayodashi ended at 03:49 Sat, before it. Chaturdashi ends at 06:04, when the lead reaches 168°. The lead passed 0° at the new moon of 9 Oct, so the Moon is waxing: Shukla paksha.

A day takes the tithi in force at its sunrise. Chaturdashi began at 03:49 Sat, before sunrise at 05:39 Sat, and ends at 06:04, after the next sunrise at 05:39. Both days read Chaturdashi: it is a vriddhi tithi here.

The night of Sat 22 Oct ran from sunset 18:15 Sat to sunrise 05:39, 11 h 24 m. Cut into 15 muhurtas of 45 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 05:39 to 18:15, splits into 8 choghadiyas of 1 h 34 m. Their names follow a fixed order that starts from the weekday, and each name is counted good, neutral or bad.

The night here, 18:15 to 05:38 Mon, splits into 8 choghadiyas of 1 h 25 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′. Revati spans 346°40′–360°00′; the Moon entered its pada 3 at 353°20′. It leaves at 15:59, for Ashwini.

Add the Sun's and the Moon's places among the stars: 187° + 354.8° = 541.8°, one full turn and 181.8°. Past the turn, cut into 27 parts of 13°20′, it gives the yoga: 173°20′–186°40′ is the 14th, Harshana. It ends at 14:36, then Vajra.

A karana is half a tithi: 6° of the Moon's lead, so the first half of Chaturdashi is Garaja and the second Vanija. Garaja ended at 16:59 Sat, when the lead reached 162°; Vanija runs until 06:04.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 05:39 to 05:38 Mon, so the hours after midnight still belong to Raviwara.

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: Kanya gives Ashwina. The Sun enters Tula on 16 Oct, inside the month. The next new moon, 7 Nov, finds it in Tula and begins Kartika.

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 9 Oct, with the Sun in Kanya, began Ashwina. This Shukla paksha reads Ashwina in both counts.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 17 Mar 1904, 02:39 Thu. Since then the Sun has moved 213.3° round the stars. Vikram Samvat numbers that year 1961; Shaka Samvat numbers it 1826.