Panchang in Codcod, Western Visayas, Philippines Sun 19 Oct 1997

The Karwa Chauth fast is broken at moonrise. Chaturthi runs from 02:50 on Sun 19 Oct to 00:57 on Mon 20 Oct, so it holds moonrise only on Sun 19 Oct, at 20:26.

Karwa Chauth: every date in Codcod

The Sankashti fast is broken at moonrise. Chaturthi runs from 02:50 on Sun 19 Oct to 00:57 on Mon 20 Oct, so it holds moonrise only on Sun 19 Oct, at 20:26. 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: 216°–228° is the 19th, Krishna Chaturthi. A day takes the tithi in force at its sunrise, 05:36 here. Tritiya ended at 02:50, before it. Chaturthi ends at 00:57 Mon, when the lead reaches 228°. The lead passed 180° at the full moon of 16 Oct, so the Moon is waning: Krishna paksha.

The night of Sat 18 Oct ran from sunset 17:28 Sat to sunrise 05:36, 12 h 8 m. Cut into 15 muhurtas of 48 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 05:36 to 17:28, 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, 17:28 to 05:36 Mon, splits into 8 choghadiyas of 1 h 31 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 4 at 36°40′. It leaves at 06:54, for Rohini.

Add the Sun's and the Moon's places among the stars: 181.7° + 39.2° = 220.9°. The sum, cut into 27 parts of 13°20′, gives the yoga: 213°20′–226°40′ is the 17th, Vyatipata. It ends at 14:42, then Variyana.

A karana is half a tithi: 6° of the Moon's lead, so the first half of Chaturthi is Bava and the second Balava. Bava runs until 13:48, when the lead reaches 222°; Balava until 00:57 Mon.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 05:36 to 05:36 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: 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 31 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: 7 Apr 1997, 19:01 Mon. Since then the Sun has moved 187.8° round the stars. Vikram Samvat numbers that year 2054; Shaka Samvat numbers it 1919.