Panchang in Ipameri, Goiás, Brazil Sun 25 Dec 1983

The Moon gains on the Sun about 12° a day. Each 12° of lead is one tithi: 240°–252° is the 21st, Krishna Shashthi. A day takes the tithi in force at its sunrise, 05:36 here. Panchami ended at 09:32 Sat, before it. Shashthi ends at 07:01, when the lead reaches 252°. The lead passed 180° at the full moon of 19 Dec, so the Moon is waning: Krishna paksha.

A day takes the tithi in force at its sunrise. Saptami began at 07:01 and ended at 04:50 Mon, between the sunrises of 05:36 and 05:37 Mon. Sunday reads Shashthi and Monday reads Ashtami: Saptami is a kshaya tithi here.

The night of Sat 24 Dec ran from sunset 18:48 Sat to sunrise 05:36, 10 h 48 m. Cut into 15 muhurtas of 43 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 05:36 to 18:48, splits into 8 choghadiyas of 1 h 39 m. Their names follow a fixed order that starts from the weekday, and each name is counted good, neutral or bad.

The night here, 18:48 to 05:37 Mon, splits into 8 choghadiyas of 1 h 21 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 3 at 140°. It leaves at 15:51, for Uttara Phalguni.

Add the Sun's and the Moon's places among the stars: 249.3° + 140.6° = 389.9°, one full turn and 29.9°. Past the turn, cut into 27 parts of 13°20′, it gives the yoga: 26°40′–40°00′ is the 3rd, Ayushmana. It ends at 21:27, then Saubhagya.

A karana is half a tithi: 6° of the Moon's lead, so the first half of Shashthi is Garaja and the second Vanija. Garaja ended at 20:15 Sat, when the lead reached 246°; Vanija runs until 07:01.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 05:36 to 05:37 Mon, so the hours after midnight still belong to Raviwara.

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: Vrishchika gives Margashirsha. The Sun enters Dhanu on 16 Dec, inside the month. The next new moon, 3 Jan, finds it in Dhanu and begins Pausha.

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 3 Jan, with the Sun in Dhanu, begins Pausha. Until then this Krishna paksha reads Pausha here, and Margashirsha in the amanta count.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 13 Apr 1983, 04:58 Wed. Since then the Sun has moved 250.1° round the stars. Vikram Samvat numbers that year 2040; Shaka Samvat numbers it 1905.