Panchang in Baoding, Hebei, China Mon 17 Jul 2023

Amavasya follows the tithi at sunrise. Amavasya runs from 00:38 on Mon 17 Jul to 02:31 on Tue 18 Jul, so it holds sunrise only on Mon 17 Jul, at 05:05. No text giving Amavasya’s time was found; sunrise is Tithika’s convention.

Amavasya: every date in Baoding

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, 05:05 here. Chaturdashi ended at 00:38, before it. Amavasya ends at 02:31 Tue, when the lead reaches 360°. The lead passed 180° at the full moon of 3 Jul, so the Moon is waning: Krishna paksha.

The night of Sun 16 Jul ran from sunset 19:42 Sun to sunrise 05:05, 9 h 23 m. Cut into 15 muhurtas of 37 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 05:05 to 19:41, splits into 8 choghadiyas of 1 h 49 m. Their names follow a fixed order that starts from the weekday, and each name is counted good, neutral or bad.

The night here, 19:41 to 05:06 Tue, splits into 8 choghadiyas of 1 h 10 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′. Ardra spans 66°40′–80°00′; the Moon entered its pada 4 at 76°40′. It leaves at 05:08, for Punarvasu.

Add the Sun's and the Moon's places among the stars: 89.9° + 79.9° = 169.8°. The sum, cut into 27 parts of 13°20′, gives the yoga: 160°00′–173°20′ is the 13th, Vyaghata. It ends at 11:27, then Harshana.

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 runs until 13:33, when the lead reaches 354°; Nagava until 02:31 Tue.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 05:05 to 05:06 Tue, so the hours after midnight still belong to Somawara.

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: Mithuna gives Ashadha. The Sun enters Karka on 17 Jul, inside the month. The next new moon, 18 Jul, finds it in Karka and begins Shravana.

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 18 Jul, with the Sun in Karka, begins Shravana. Until then this Krishna paksha reads Shravana here, and Ashadha in the amanta count.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 22 Mar 2023, 01:23 Wed. Since then the Sun has moved 113.3° round the stars. Vikram Samvat numbers that year 2080; Shaka Samvat numbers it 1945.