Panchang in Ipameri, Goiás, Brazil Tue 1 Sep 1936

Purnima follows the tithi at sunrise. Purnima runs from 12:30 on Mon 31 Aug to 09:37 on Tue 1 Sep, so it holds sunrise only on Tue 1 Sep, at 06:19. No text giving Purnima’s time was found; sunrise is Tithika’s convention.

Purnima: every date in Ipameri

The Moon gains on the Sun about 12° a day. Each 12° of lead is one tithi: 168°–180° is the 15th, Shukla Purnima. A day takes the tithi in force at its sunrise, 06:19 here. Chaturdashi ended at 12:30 Mon, before it. Purnima ends at 09:37, when the lead reaches 180°. The lead passed 0° at the new moon of 17 Aug, so the Moon is waxing: Shukla paksha.

The night of Mon 31 Aug ran from sunset 18:05 Mon to sunrise 06:19, 12 h 14 m. Cut into 15 muhurtas of 48 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 06:19 to 18:05, splits into 8 choghadiyas of 1 h 28 m. Their names follow a fixed order that starts from the weekday, and each name is counted good, neutral or bad.

The night here, 18:05 to 06:19 Wed, splits into 8 choghadiyas of 1 h 31 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′. Shatabhisha spans 306°40′–320°00′; the Moon entered its pada 3 at 313°20′. It leaves at 16:17, for Purva Bhadrapada.

Add the Sun's and the Moon's places among the stars: 135.8° + 313.9° = 449.7°, one full turn and 89.7°. Past the turn, cut into 27 parts of 13°20′, it gives the yoga: 80°00′–93°20′ is the 7th, Sukarma. It ends at 11:58, then Dhriti.

A karana is half a tithi: 6° of the Moon's lead, so the first half of Purnima is Vishti and the second Bava. Vishti ended at 23:07 Mon, when the lead reached 174°; Bava runs until 09:37.

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

A month normally holds one sankranti, the Sun's entry into a new rashi. From 17 Aug 00:20 Mon to 15 Sep 14:41 Tue the Sun stayed in Simha, entering Kanya at 15 Sep 22:01 Tue, after the new moon. A month with no sankranti is Adhika Bhadrapada, before Bhadrapada 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 Aug, with the Sun in Simha, began Bhadrapada (Adhik). This Shukla paksha reads Bhadrapada (Adhik) in both counts.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 23 Mar 1936, 01:13 Mon. Since then the Sun has moved 156.4° round the stars. Vikram Samvat numbers that year 1993; Shaka Samvat numbers it 1858.