Panchang in Sevan, Gegharkunik, Armenia Tue 29 Jun 1920

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 04:17 Mon, before it. Trayodashi ends at 06:45, 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. Trayodashi began at 04:17 Mon, before sunrise at 04:31 Mon, and ends at 06:45, after the next sunrise at 04:31. Both days read Trayodashi: it is a vriddhi tithi here.

The night of Mon 28 Jun ran from sunset 19:34 Mon 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 04:32 Wed, 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 02:23 Wed, for Mula.

Add the Sun's and the Moon's places among the stars: 74.2° + 229.2° = 303.4°. The sum, cut into 27 parts of 13°20′, gives the yoga: 293°20′–306°40′ is the 23rd, Shubha. It ends at 10:32, 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 17:30 Mon, when the lead reached 150°; Taitila runs until 06:45.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 04:31 to 04:32 Wed, so the hours after midnight still belong to Mangalawara.

An amanta month runs from new moon to new moon and takes its name from the rashi the Sun is in at the new moon that begins it: Mithuna gives Ashadha. The Sun enters Karka on 15 Jul, inside the month. The next new moon, 15 Jul, finds it in Karka and begins Shravana.

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. This Shukla paksha reads Ashadha in both counts.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 20 Mar 1920, 13:55 Sat. Since then the Sun has moved 97.4° round the stars. Vikram Samvat numbers that year 1977; Shaka Samvat numbers it 1842.