Panchang in Codcod, Western Visayas, Philippines Tue 2 Dec 1980

The Moon gains on the Sun about 12° a day. Each 12° of lead is one tithi: 288°–300° is the 25th, Krishna Dashami. A day takes the tithi in force at its sunrise, 05:49 here. Navami ended at 09:10 Mon, before it. Dashami ends at 11:43, when the lead reaches 300°. The lead passed 180° at the full moon of 22 Nov, so the Moon is waning: Krishna paksha.

The night of Mon 1 Dec ran from sunset 17:22 Mon to sunrise 05:49, 12 h 27 m. Cut into 15 muhurtas of 49 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 05:49 to 17:23, splits into 8 choghadiyas of 1 h 26 m. Their names follow a fixed order that starts from the weekday, and each name is counted good, neutral or bad.

The night here, 17:23 to 05:50 Wed, splits into 8 choghadiyas of 1 h 33 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′. Hasta spans 160°00′–173°20′; the Moon entered its pada 2 at 163°20′. It leaves at 01:30 Wed, for Chitra.

Add the Sun's and the Moon's places among the stars: 226.3° + 163.6° = 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 00:39 Wed, then Saubhagya.

A karana is half a tithi: 6° of the Moon's lead, so the first half of Dashami is Vanija and the second Vishti. Vanija ended at 22:25 Mon, when the lead reached 294°; Vishti runs until 11:43.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 05:49 to 05:50 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: Tula gives Kartika. The Sun enters Vrishchika on 16 Nov, inside the month. The next new moon, 7 Dec, finds it in Vrishchika and begins Margashirsha.

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 7 Dec, with the Sun in Vrishchika, begins Margashirsha. Until then this Krishna paksha reads Margashirsha here, and Kartika in the amanta count.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 17 Mar 1980, 02:55 Mon. Since then the Sun has moved 253.5° round the stars. Vikram Samvat numbers that year 2037; Shaka Samvat numbers it 1902.