Panchang in Codcod, Western Visayas, Philippines Sat 15 Oct 2011

The Karwa Chauth fast is broken at moonrise. Chaturthi runs from 17:35 on Sat 15 Oct to 19:47 on Sun 16 Oct, so it holds moonrise only on Sat 15 Oct, at 19:40.

Karwa Chauth: every date in Codcod

The Sankashti fast is broken at moonrise. Chaturthi runs from 17:35 on Sat 15 Oct to 19:47 on Sun 16 Oct, so it holds moonrise only on Sat 15 Oct, at 19:40. No text giving Sankashti Chaturthi’s time was found; moonrise is Tithika’s convention.

Sankashti Chaturthi: every date in Codcod

The Moon gains on the Sun about 12° a day. Each 12° of lead is one tithi: 204°–216° is the 18th, Krishna Tritiya. A day takes the tithi in force at its sunrise, 05:35 here. Dwitiya ended at 15:09 Fri, before it. Tritiya ends at 17:35, when the lead reaches 216°. The lead passed 180° at the full moon of 12 Oct, so the Moon is waning: Krishna paksha.

The night of Fri 14 Oct ran from sunset 17:30 Fri to sunrise 05:35, 12 h 5 m. Cut into 15 muhurtas of 48 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 05:35 to 17:30, splits into 8 choghadiyas of 1 h 29 m. Their names follow a fixed order that starts from the weekday, and each name is counted good, neutral or bad.

The night here, 17:30 to 05:35 Sun, splits into 8 choghadiyas of 1 h 30 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′. Krittika spans 26°40′–40°00′; the Moon entered its pada 1 at 26°40′. It leaves at 06:19 Sun, for Rohini.

Add the Sun's and the Moon's places among the stars: 177.2° + 27.7° = 204.9°. The sum, cut into 27 parts of 13°20′, gives the yoga: 200°00′–213°20′ is the 16th, Siddhi. It ends at 21:20, then Vyatipata.

A karana is half a tithi: 6° of the Moon's lead, so the first half of Tritiya is Vanija and the second Vishti. Vanija ended at 04:23, when the lead reached 210°; Vishti runs until 17:35.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 05:35 to 05:35 Sun, so the hours after midnight still belong to Shaniwara.

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 18 Oct, inside the month. The next new moon, 27 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 27 Oct, with the Sun in Tula, begins Kartika. Until then this Krishna paksha reads Kartika here, and Ashwina in the amanta count.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 3 Apr 2011, 22:32 Sun. Since then the Sun has moved 187.7° round the stars. Vikram Samvat numbers that year 2068; Shaka Samvat numbers it 1933.