Panchang in Sevan, Gegharkunik, Armenia Fri 30 Apr 1999

Buddha Purnima follows the tithi at sunrise. Purnima runs from 17:44 on Thu 29 Apr to 19:54 on Fri 30 Apr, so it holds sunrise only on Fri 30 Apr, at 07:01. No text giving Buddha Purnima’s time was found; sunrise is Tithika’s convention.

Buddha Purnima: every date in Sevan

Purnima follows the tithi at sunrise. Purnima runs from 17:44 on Thu 29 Apr to 19:54 on Fri 30 Apr, so it holds sunrise only on Fri 30 Apr, at 07:01. No text giving Purnima’s time was found; sunrise is Tithika’s convention.

Purnima: every date in Sevan

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, 07:01 here. Chaturdashi ended at 17:44 Thu, before it. Purnima ends at 19:54, when the lead reaches 180°. The lead passed 0° at the new moon of 16 Apr, so the Moon is waxing: Shukla paksha.

The night of Thu 29 Apr ran from sunset 20:52 Thu to sunrise 07:01, 10 h 9 m. Cut into 15 muhurtas of 40 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 07:01 to 20:53, splits into 8 choghadiyas of 1 h 44 m. Their names follow a fixed order that starts from the weekday, and each name is counted good, neutral or bad.

The night here, 20:53 to 06:59 Sat, splits into 8 choghadiyas of 1 h 15 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 1 at 186°40′. It leaves at 03:59 Sat, for Vishakha.

Add the Sun's and the Moon's places among the stars: 15.5° + 189.6° = 205.1°. The sum, cut into 27 parts of 13°20′, gives the yoga: 200°00′–213°20′ is the 16th, Siddhi. It ends at 22:27, then Vyatipata.

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 06:48, when the lead reached 174°; Bava runs until 19:54.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 07:01 to 06:59 Sat, so the hours after midnight still belong to Shukrawara.

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: Mesha gives Vaishakha. The Sun enters Vrishabha on 15 May, inside the month. The next new moon, 15 May, finds it in Vrishabha and begins Jyeshtha.

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 16 Apr, with the Sun in Mesha, began Vaishakha. This Shukla paksha reads Vaishakha in both counts.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 17 Mar 1999, 22:47 Wed. Since then the Sun has moved 42.6° round the stars. Vikram Samvat numbers that year 2056; Shaka Samvat numbers it 1921.