Panchang in Sevan, Gegharkunik, Armenia Wed 31 Jul 1901

Purnima follows the tithi at sunrise. Purnima runs from 14:16 on Tue 30 Jul to 13:31 on Wed 31 Jul, so it holds sunrise only on Wed 31 Jul, at 04:52. 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, 04:54 here. Chaturdashi ended at 14:18 Tue, before it. Purnima ends at 13:33, when the lead reaches 180°. The lead passed 0° at the new moon of 16 Jul, so the Moon is waxing: Shukla paksha.

The night of Tue 30 Jul ran from sunset 19:17 Tue to sunrise 04:54, 9 h 37 m. Cut into 15 muhurtas of 38 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 04:54 to 19:16, splits into 8 choghadiyas of 1 h 47 m. Their names follow a fixed order that starts from the weekday, and each name is counted good, neutral or bad.

The night here, 19:16 to 04:55 Thu, splits into 8 choghadiyas of 1 h 12 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′. Shravana spans 280°00′–293°20′; the Moon entered its pada 1 at 280°. It leaves at 04:17 Thu, for Dhanishtha.

Add the Sun's and the Moon's places among the stars: 104.7° + 280.2° = 384.9°, one full turn and 24.9°. Past the turn, cut into 27 parts of 13°20′, it gives the yoga: 13°20′–26°40′ is the 2nd, Priti. It ends at 07:59, then Ayushmana.

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 02:00, when the lead reached 174°; Bava runs until 13:33.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 04:54 to 04:55 Thu, so the hours after midnight still belong to Budhawara.

A month normally holds one sankranti, the Sun's entry into a new rashi. From 16 Jul 01:10 Tue to 14 Aug 11:27 Wed the Sun stayed in Karka, entering Simha at 16 Aug 04:52 Fri, after the new moon. A month with no sankranti is Adhika Shravana, before Shravana 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 Jul, with the Sun in Karka, began Shravana (Adhik). This Shukla paksha reads Shravana (Adhik) in both counts.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 20 Mar 1901, 15:52 Wed. Since then the Sun has moved 127.9° round the stars. Vikram Samvat numbers that year 1958; Shaka Samvat numbers it 1823.