Panchang in Sevan, Gegharkunik, Armenia Tue 14 Oct 1997

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, 08:09 here. Dwadashi ended at 19:13 Mon, before it. Trayodashi ends at 15:49, when the lead reaches 156°. The lead passed 0° at the new moon of 1 Oct, so the Moon is waxing: Shukla paksha.

The night of Mon 13 Oct ran from sunset 19:23 Mon to sunrise 08:09, 12 h 46 m. Cut into 15 muhurtas of 51 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 08:09 to 19:21, splits into 8 choghadiyas of 1 h 24 m. Their names follow a fixed order that starts from the weekday, and each name is counted good, neutral or bad.

The night here, 19:21 to 08:10 Wed, splits into 8 choghadiyas of 1 h 36 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 Bhadrapada spans 320°00′–333°20′; the Moon entered its pada 3 at 326°40′. It leaves at 15:52, for Uttara Bhadrapada.

Add the Sun's and the Moon's places among the stars: 177° + 328.5° = 505.5°, one full turn and 145.5°. Past the turn, cut into 27 parts of 13°20′, it gives the yoga: 133°20′–146°40′ is the 11th, Vriddhi. It ends at 09:55, then Dhruva.

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 05:33, when the lead reached 150°; Taitila runs until 15:49.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 08:09 to 08:10 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: Kanya gives Ashwina. The Sun enters Tula on 17 Oct, inside the month. The next new moon, 31 Oct, finds it in Tula and begins Kartika.

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 1 Oct, with the Sun in Kanya, began Ashwina. This Shukla paksha reads Ashwina in both counts.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 7 Apr 1997, 16:01 Mon. Since then the Sun has moved 183.1° round the stars. Vikram Samvat numbers that year 2054; Shaka Samvat numbers it 1919.