Panchang in Sevan, Gegharkunik, Armenia Thu 21 Jul 1966

The Moon gains on the Sun about 12° a day. Each 12° of lead is one tithi: 36°–48° is the 4th, Shukla Chaturthi. A day takes the tithi in force at its sunrise, 05:46 here. Tritiya ended at 22:32 Wed, before it. Chaturthi ends at 19:18, when the lead reaches 48°. The lead passed 0° at the new moon of 18 Jul, so the Moon is waxing: Shukla paksha.

The night of Wed 20 Jul ran from sunset 20:26 Wed to sunrise 05:46, 9 h 20 m. Cut into 15 muhurtas of 37 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 05:46 to 20:25, splits into 8 choghadiyas of 1 h 49 m. Their names follow a fixed order that starts from the weekday, and each name is counted good, neutral or bad.

The night here, 20:25 to 05:47 Fri, splits into 8 choghadiyas of 1 h 10 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′. Purva Phalguni spans 133°20′–146°40′; the Moon entered its pada 1 at 133°20′. It leaves at 01:16 Fri, for Uttara Phalguni.

Add the Sun's and the Moon's places among the stars: 94.5° + 134.7° = 229.2°. The sum, cut into 27 parts of 13°20′, gives the yoga: 226°40′–240°00′ is the 18th, Variyana. It ends at 22:19, then Parigha.

A karana is half a tithi: 6° of the Moon's lead, so the first half of Chaturthi is Vanija and the second Vishti. Vanija runs until 08:53, when the lead reaches 42°; Vishti until 19:18.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 05:46 to 05:47 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 18 Jul 08:30 Mon to 16 Aug 15:47 Tue the Sun stayed in Karka, entering Simha at 16 Aug 21:28 Tue, 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 18 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: 22 Mar 1966, 08:46 Tue. Since then the Sun has moved 116.8° round the stars. Vikram Samvat numbers that year 2023; Shaka Samvat numbers it 1888.