Panchang in Codcod, Western Visayas, Philippines Fri 29 May 2037

Purnima follows the tithi at sunrise. Purnima runs from 14:03 on Thu 28 May to 12:24 on Fri 29 May, so it holds sunrise only on Fri 29 May, at 05:24. No text giving Purnima’s time was found; sunrise is Tithika’s convention.

Purnima: every date in Codcod

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, 05:24 here. Chaturdashi ended at 14:03 Thu, before it. Purnima ends at 12:24, when the lead reaches 180°. The lead passed 0° at the new moon of 15 May, so the Moon is waxing: Shukla paksha.

The night of Thu 28 May ran from sunset 18:04 Thu to sunrise 05:24, 11 h 20 m. Cut into 15 muhurtas of 45 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 05:24 to 18:05, splits into 8 choghadiyas of 1 h 35 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 05:24 Sat, splits into 8 choghadiyas of 1 h 24 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′. Anuradha spans 213°20′–226°40′; the Moon entered its pada 2 at 216°40′. It leaves at 17:27, for Jyeshtha.

Add the Sun's and the Moon's places among the stars: 43.5° + 219.8° = 263.3°. The sum, cut into 27 parts of 13°20′, gives the yoga: 253°20′–266°40′ is the 20th, Shiva. It ends at 10:56, then Siddha.

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 01:10, when the lead reached 174°; Bava runs until 12:24.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 05:24 to 05:24 Sat, so the hours after midnight still belong to Shukrawara.

A month normally holds one sankranti, the Sun's entry into a new rashi. From 15 May 13:54 Fri to 14 Jun 01:10 Sun the Sun stayed in Vrishabha, entering Mithuna at 15 Jun 11:02 Mon, 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 15 May, with the Sun in Vrishabha, began Jyeshtha (Adhik). This Shukla paksha reads Jyeshtha (Adhik) in both counts.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 17 Mar 2037, 07:36 Tue. Since then the Sun has moved 71.2° round the stars. Vikram Samvat numbers that year 2094; Shaka Samvat numbers it 1959.