Panchang in Sevan, Gegharkunik, Armenia Tue 10 Dec 2013

The Moon gains on the Sun about 12° a day. Each 12° of lead is one tithi: 96°–108° is the 9th, Shukla Navami. A day takes the tithi in force at its sunrise, 08:12 here. Ashtami ended at 06:41, before it. Navami ends at 06:08 Wed, when the lead reaches 108°. The lead passed 0° at the new moon of 3 Dec, so the Moon is waxing: Shukla paksha.

A day takes the tithi in force at its sunrise.

New Delhi · IST

Sunrise here, 07:02, came before Ashtami ended at 08:11: this day reads Ashtami.

Sevan · UTC+4

Sunrise here, 08:12, came after Ashtami ended at 06:41: this day reads Navami.

The night of Mon 9 Dec ran from sunset 17:33 Mon to sunrise 08:12, 14 h 39 m. Cut into 15 muhurtas of 58 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 08:12 to 17:33, 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 night here, 17:33 to 08:13 Wed, splits into 8 choghadiyas of 1 h 50 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′. Purva Bhadrapada spans 320°00′–333°20′; the Moon entered its pada 4 at 330°. It leaves at 12:23, for Uttara Bhadrapada.

Add the Sun's and the Moon's places among the stars: 234.2° + 331° = 565.2°, one full turn and 205.2°. Past the turn, cut into 27 parts of 13°20′, it gives the yoga: 200°00′–213°20′ is the 16th, Siddhi. It ends at 21:48, then Vyatipata.

A karana is half a tithi: 6° of the Moon's lead, so the first half of Navami is Balava and the second Kaulava. Balava runs until 18:20, when the lead reaches 102°; Kaulava until 06:08 Wed.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 08:12 to 08:13 Wed, so the hours after midnight still belong to Mangalawara.

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 16 Dec, inside the month. The next new moon, 1 Jan, 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 3 Dec, with the Sun in Vrishchika, began Margashirsha. This Shukla paksha reads Margashirsha in both counts.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 10 Apr 2013, 13:35 Wed. Since then the Sun has moved 237.6° round the stars. Vikram Samvat numbers that year 2070; Shaka Samvat numbers it 1935.