Panchang in Diffa, Niger Fri 9 Feb 2018

The Moon gains on the Sun about 12° a day. Each 12° of lead is one tithi: 276°–288° is the 24th, Krishna Navami. A day takes the tithi in force at its sunrise, 06:34 here. Ashtami ended at 05:42 Thu, before it. Navami ends at 07:46, when the lead reaches 288°. The lead passed 180° at the full moon of 31 Jan, so the Moon is waning: Krishna paksha.

A day takes the tithi in force at its sunrise. Navami began at 05:42 Thu, before sunrise at 06:34 Thu, and ends at 07:46, after the next sunrise at 06:34. Both days read Navami: it is a vriddhi tithi here.

The night of Thu 8 Feb ran from sunset 18:12 Thu to sunrise 06:34, 12 h 22 m. Cut into 15 muhurtas of 49 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 06:34 to 18:13, splits into 8 choghadiyas of 1 h 27 m. Their names follow a fixed order that starts from the weekday, and each name is counted good, neutral or bad.

The night here, 18:13 to 06:34 Sat, splits into 8 choghadiyas of 1 h 32 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′. Anuradha spans 213°20′–226°40′; the Moon entered its pada 4 at 223°20′. It leaves at 12:25, for Jyeshtha.

Add the Sun's and the Moon's places among the stars: 296.3° + 223.8° = 520.1°, one full turn and 160.1°. Past the turn, cut into 27 parts of 13°20′, it gives the yoga: 160°00′–173°20′ is the 13th, Vyaghata. It ends at 07:14 Sat, then Harshana.

A karana is half a tithi: 6° of the Moon's lead, so the first half of Navami is Taitila and the second Garaja. Taitila ended at 18:40 Thu, when the lead reached 282°; Garaja runs until 07:46.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 06:34 to 06:34 Sat, so the hours after midnight still belong to Shukrawara.

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: Makara gives Magha. The Sun enters Kumbha on 12 Feb, inside the month. The next new moon, 15 Feb, finds it in Kumbha and begins Phalguna.

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 15 Feb, with the Sun in Kumbha, begins Phalguna. Until then this Krishna paksha reads Phalguna here, and Magha 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 312.8° round the stars. Vikram Samvat numbers that year 2074; Shaka Samvat numbers it 1939.