Panchang in Diffa, Niger Sun 17 Apr 2011

Hanuman Jayanti follows the tithi at sunrise. Purnima begins at 07:30 on Sun 17 Apr, after that sunrise, and ends at 03:43 on Mon 18 Apr, before the next: it holds no sunrise. A tithi that holds no sunrise is kept on the day it is current: Sun 17 Apr. No text giving Hanuman Jayanti’s time was found; sunrise is Tithika’s convention.

Hanuman Jayanti: every date in Diffa

Purnima follows the tithi at sunrise. Purnima begins at 07:30 on Sun 17 Apr, after that sunrise, and ends at 03:43 on Mon 18 Apr, before the next: it holds no sunrise. A tithi that holds no sunrise is kept on the day it is current: Sun 17 Apr. No text giving Purnima’s time was found; sunrise is Tithika’s convention.

Purnima: every date in Diffa

The Moon gains on the Sun about 12° a day. Each 12° of lead is one tithi: 156°–168° is the 14th, Shukla Chaturdashi. A day takes the tithi in force at its sunrise, 05:55 here. Trayodashi ended at 11:17 Sat, before it. Chaturdashi ends at 07:30, when the lead reaches 168°. The lead passed 0° at the new moon of 3 Apr, so the Moon is waxing: Shukla paksha.

A day takes the tithi in force at its sunrise. Purnima began at 07:30 and ended at 03:43 Mon, between the sunrises of 05:55 and 05:55 Mon. Sunday reads Chaturdashi and Monday reads Pratipada: Purnima is a kshaya tithi here.

The night of Sat 16 Apr ran from sunset 18:22 Sat to sunrise 05:55, 11 h 33 m. Cut into 15 muhurtas of 46 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 05:55 to 18:22, splits into 8 choghadiyas of 1 h 33 m. Their names follow a fixed order that starts from the weekday, and each name is counted good, neutral or bad.

The night here, 18:22 to 05:55 Mon, splits into 8 choghadiyas of 1 h 26 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′. Hasta spans 160°00′–173°20′; the Moon entered its pada 3 at 166°40′. It leaves at 11:20, for Chitra.

Add the Sun's and the Moon's places among the stars: 2.8° + 169.9° = 172.7°. The sum, cut into 27 parts of 13°20′, gives the yoga: 160°00′–173°20′ is the 13th, Vyaghata. It ends at 06:49, then Harshana.

A karana is half a tithi: 6° of the Moon's lead, so the first half of Chaturdashi is Garaja and the second Vanija. Garaja ended at 21:24 Sat, when the lead reached 162°; Vanija runs until 07:30.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 05:55 to 05:55 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: Meena gives Chaitra. The Sun enters Mesha on 14 Apr, inside the month. The next new moon, 3 May, finds it in Mesha and begins Vaishakha.

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 3 Apr, with the Sun in Meena, began Chaitra. This Shukla paksha reads Chaitra in both counts.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 3 Apr 2011, 15:32 Sun. Since then the Sun has moved 13.3° round the stars. Vikram Samvat numbers that year 2068; Shaka Samvat numbers it 1933.