Panchang in Myjava, Trenčín Region, Slovakia Thu 29 Jun 1950

Purnima follows the tithi at sunrise. Purnima runs from 00:09 on Thu 29 Jun to 20:58 on Thu 29 Jun, so it holds sunrise only on Thu 29 Jun, at 03:48. No text giving Purnima’s time was found; sunrise is Tithika’s convention.

Purnima: every date in Myjava

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, 03:48 here. Chaturdashi ended at 00:09, before it. Purnima ends at 20:58, when the lead reaches 180°. The lead passed 0° at the new moon of 15 Jun, so the Moon is waxing: Shukla paksha.

The night of Wed 28 Jun ran from sunset 19:56 Wed to sunrise 03:48, 7 h 52 m. Cut into 15 muhurtas of 31 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 03:48 to 19:56, splits into 8 choghadiyas of 2 h 1 m. Their names follow a fixed order that starts from the weekday, and each name is counted good, neutral or bad.

The night here, 19:56 to 03:49 Fri, splits into 8 choghadiyas of 59 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′. Mula spans 240°00′–253°20′; the Moon entered its pada 2 at 243°20′. It leaves at 19:21, for Purva Ashadha.

Add the Sun's and the Moon's places among the stars: 73.6° + 243.8° = 317.4°. The sum, cut into 27 parts of 13°20′, gives the yoga: 306°40′–320°00′ is the 24th, Shukla. It ends at 07:46, then Brahma.

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 10:32, when the lead reaches 174°; Bava until 20:58.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 03:48 to 03:49 Fri, so the hours after midnight still belong to Guruwara.

A month normally holds one sankranti, the Sun's entry into a new rashi. From 15 Jun 16:52 Thu to 15 Jul 06:05 Sat the Sun stayed in Mithuna, entering Karka at 16 Jul 07:41 Sun, after the new moon. A month with no sankranti is Adhika Ashadha, before Ashadha 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 Jun, with the Sun in Mithuna, began Ashadha (Adhik). This Shukla paksha reads Ashadha (Adhik) in both counts.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 18 Mar 1950, 16:20 Sat. Since then the Sun has moved 99.3° round the stars. Vikram Samvat numbers that year 2007; Shaka Samvat numbers it 1872.