Panchang in Sevan, Gegharkunik, Armenia Tue 30 May 2045

Purnima follows the tithi at sunrise. Purnima runs from 21:37 on Mon 29 May to 21:52 on Tue 30 May, so it holds sunrise only on Tue 30 May, at 05:32. 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, 05:32 here. Chaturdashi ended at 21:37 Mon, before it. Purnima ends at 21:52, when the lead reaches 180°. The lead passed 0° at the new moon of 16 May, so the Moon is waxing: Shukla paksha.

The night of Mon 29 May ran from sunset 20:22 Mon to sunrise 05:32, 9 h 10 m. Cut into 15 muhurtas of 36 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 05:32 to 20:23, splits into 8 choghadiyas of 1 h 51 m. Their names follow a fixed order that starts from the weekday, and each name is counted good, neutral or bad.

The night here, 20:23 to 05:32 Wed, splits into 8 choghadiyas of 1 h 8 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 1 at 213°20′. It leaves at 00:34 Wed, for Jyeshtha.

Add the Sun's and the Moon's places among the stars: 44.6° + 216.5° = 261.1°. The sum, cut into 27 parts of 13°20′, gives the yoga: 253°20′–266°40′ is the 20th, Shiva. It ends at 15:12, 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 runs until 09:41, when the lead reaches 174°; Bava until 21:52.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 05:32 to 05:32 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 16 May 22:26 Tue to 15 Jun 07:04 Thu the Sun stayed in Vrishabha, entering Mithuna at 15 Jun 08:12 Thu, 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 16 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: 18 Mar 2045, 21:14 Sat. Since then the Sun has moved 70.6° round the stars. Vikram Samvat numbers that year 2102; Shaka Samvat numbers it 1967.