Panchang in Sevan, Gegharkunik, Armenia Sun 28 Jun 1931

The Moon gains on the Sun about 12° a day. Each 12° of lead is one tithi: 144°–156° is the 13th, Shukla Trayodashi. A day takes the tithi in force at its sunrise, 04:31 here. Dwadashi ended at 06:54 Sat, before it. Trayodashi ends at 05:30, when the lead reaches 156°. The lead passed 0° at the new moon of 16 Jun, so the Moon is waxing: Shukla paksha.

A day takes the tithi in force at its sunrise. Chaturdashi began at 05:30 and ended at 04:26 Mon, between the sunrises of 04:31 and 04:31 Mon. Sunday reads Trayodashi and Monday reads Purnima: Chaturdashi is a kshaya tithi here.

The night of Sat 27 Jun ran from sunset 19:34 Sat to sunrise 04:31, 8 h 57 m. Cut into 15 muhurtas of 35 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 04:31 to 19:34, splits into 8 choghadiyas of 1 h 52 m. Their names follow a fixed order that starts from the weekday, and each name is counted good, neutral or bad.

The night here, 19:34 to 04:31 Mon, splits into 8 choghadiyas of 1 h 7 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′. Jyeshtha spans 226°40′–240°00′; the Moon entered its pada 1 at 226°40′. It leaves at 01:50 Mon, for Mula.

Add the Sun's and the Moon's places among the stars: 72.5° + 228° = 300.5°. The sum, cut into 27 parts of 13°20′, gives the yoga: 293°20′–306°40′ is the 23rd, Shubha. It ends at 14:43, then Shukla.

A karana is half a tithi: 6° of the Moon's lead, so the first half of Trayodashi is Kaulava and the second Taitila. Kaulava ended at 18:10 Sat, when the lead reached 150°; Taitila runs until 05:30.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 04:31 to 04:31 Mon, so the hours after midnight still belong to Raviwara.

A month normally holds one sankranti, the Sun's entry into a new rashi. From 16 Jun 06:01 Tue to 15 Jul 15:19 Wed the Sun stayed in Mithuna, entering Karka at 16 Jul 12:51 Thu, 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 16 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: 19 Mar 1931, 10:50 Thu. Since then the Sun has moved 97.6° round the stars. Vikram Samvat numbers that year 1988; Shaka Samvat numbers it 1853.