Panchang in Diffa, Niger Sun 17 Dec 2017

Amavasya follows the tithi at sunrise. Amavasya holds both sunrises, 06:25 on Sun 17 Dec and 06:25 on Mon 18 Dec. Over two sunrises the Nirnayasindhu takes the first: Sun 17 Dec. No text giving Amavasya’s time was found; sunrise is Tithika’s convention.

Amavasya: every date in Diffa

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, 06:25 here. Chaturdashi ended at 04:59, before it. Amavasya ends at 07:30 Mon, when the lead reaches 360°. The lead passed 180° at the full moon of 3 Dec, so the Moon is waning: Krishna paksha.

A day takes the tithi in force at its sunrise. Amavasya began at 04:59, before sunrise at 06:25, and ends at 07:30 Mon, after the next sunrise at 06:25 Mon. Both days read Amavasya: it is a vriddhi tithi here.

A day takes the tithi in force at its sunrise.

New Delhi · IST

Sunrise here, 07:07, came before Chaturdashi ended at 09:29: this day reads Chaturdashi.

Diffa · UTC+1

Sunrise here, 06:25, came after Chaturdashi ended at 04:59: this day reads Amavasya.

The night of Sat 16 Dec ran from sunset 17:45 Sat to sunrise 06:25, 12 h 40 m. Cut into 15 muhurtas of 50 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 06:25 to 17:46, splits into 8 choghadiyas of 1 h 25 m. Their names follow a fixed order that starts from the weekday, and each name is counted good, neutral or bad.

The night here, 17:46 to 06:25 Mon, splits into 8 choghadiyas of 1 h 34 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′. Jyeshtha spans 226°40′–240°00′; the Moon entered its pada 2 at 230°. It leaves at 02:36 Mon, for Mula.

Add the Sun's and the Moon's places among the stars: 241.4° + 230° = 471.4°, one full turn and 111.4°. Past the turn, cut into 27 parts of 13°20′, it gives the yoga: 106°40′–120°00′ is the 9th, Shula. It ends at 22:29, then Ganda.

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 18:13, when the lead reaches 354°; Nagava until 07:30 Mon.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 06:25 to 06:25 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: Vrishchika gives Margashirsha. The Sun enters Dhanu on 15 Dec, inside the month. The next new moon, 18 Dec, finds it in Dhanu and begins Pausha.

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 Dec, with the Sun in Dhanu, begins Pausha. Until then this Krishna paksha reads Pausha here, and Margashirsha in the amanta count.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 28 Mar 2017, 03:57 Tue. Since then the Sun has moved 257.9° round the stars. Vikram Samvat numbers that year 2074; Shaka Samvat numbers it 1939.