Panchang in Ipameri, Goiás, Brazil Sun 14 Jul 1912

Amavasya follows the tithi at sunrise. Amavasya runs from 13:56 on Sat 13 Jul to 10:06 on Sun 14 Jul, so it holds sunrise only on Sun 14 Jul, at 06:37. No text giving Amavasya’s time was found; sunrise is Tithika’s convention.

Amavasya: every date in Ipameri

The Moon gains on the Sun about 12° a day. Each 12° of lead is one tithi: 348°–360° is the 30th, Krishna Amavasya. A day takes the tithi in force at its sunrise, 06:43 here. Chaturdashi ended at 14:02 Sat, before it. Amavasya ends at 10:12, when the lead reaches 360°. The lead passed 180° at the full moon of 29 Jun, so the Moon is waning: Krishna paksha.

A day takes the tithi in force at its sunrise. Pratipada began at 10:12 and ended at 06:18 Mon, between the sunrises of 06:43 and 06:43 Mon. Sunday reads Amavasya and Monday reads Dwitiya: Pratipada is a kshaya tithi here.

The night of Sat 13 Jul ran from sunset 17:52 Sat to sunrise 06:43, 12 h 51 m. Cut into 15 muhurtas of 51 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 06:43 to 17:53, splits into 8 choghadiyas of 1 h 23 m. Their names follow a fixed order that starts from the weekday, and each name is counted good, neutral or bad.

The night here, 17:53 to 06:43 Mon, 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′. Punarvasu spans 80°00′–93°20′; the Moon entered its pada 3 at 86°40′. It leaves at 16:56, for Pushya.

Add the Sun's and the Moon's places among the stars: 88.9° + 86.8° = 175.7°. The sum, cut into 27 parts of 13°20′, gives the yoga: 173°20′–186°40′ is the 14th, Harshana. It ends at 22:51, then Vajra.

A karana is half a tithi: 6° of the Moon's lead, so the first half of Amavasya is Chatushpada and the second Nagava. Chatushpada ended at 00:09, when the lead reached 354°; Nagava runs until 10:12.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 06:43 to 06:43 Mon, so the hours after midnight still belong to Raviwara.

A month normally holds one sankranti, the Sun's entry into a new rashi. From 15 Jun 03:23 Sat to 14 Jul 10:12 the Sun stayed in Mithuna, entering Karka at 15 Jul 10:02 Mon, after the new moon. A month with no sankranti is Adhika Ashadha, before Ashadha itself.

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 14 Jul, with the Sun in Mithuna, begins Ashadha (Adhik). Until then this Krishna paksha reads Ashadha (Adhik) here, and Ashadha (Adhik) in the amanta count.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 18 Mar 1912, 19:08 Mon. Since then the Sun has moved 113.6° round the stars. Vikram Samvat numbers that year 1969; Shaka Samvat numbers it 1834.