Panchang in Sevan, Gegharkunik, Armenia Thu 12 Apr 2018

Smartas test Ekadashi at sunrise. It holds both sunrises, 06:28 on Wed 11 Apr and 06:26 on Thu 12 Apr. Ekadashi (05:10 Wed 11 Apr to 06:43 Thu 12 Apr) and Dwadashi (06:43 Thu 12 Apr to 07:34 Fri 13 Apr) are both longer than their day; when both grow, Smartas take the later day: Thu 12 Apr. Vaishnavas test arunodaya: on Wed 11 Apr Dashami lasts until 05:10, inside it (04:52–06:28); on Thu 12 Apr Ekadashi holds all of it.

Varuthini Ekadashi: every date in Sevan

The Moon gains on the Sun about 12° a day. Each 12° of lead is one tithi: 300°–312° is the 26th, Krishna Ekadashi. A day takes the tithi in force at its sunrise, 06:26 here. Dashami ended at 05:10 Wed, before it. Ekadashi ends at 06:43, when the lead reaches 312°. The lead passed 180° at the full moon of 31 Mar, so the Moon is waning: Krishna paksha.

A day takes the tithi in force at its sunrise. Ekadashi began at 05:10 Wed, before sunrise at 06:28 Wed, and ends at 06:43, after the next sunrise at 06:26. Both days read Ekadashi: it is a vriddhi tithi here.

The night of Wed 11 Apr ran from sunset 19:34 Wed to sunrise 06:26, 10 h 52 m. Cut into 15 muhurtas of 43 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 06:26 to 19:35, splits into 8 choghadiyas of 1 h 38 m. Their names follow a fixed order that starts from the weekday, and each name is counted good, neutral or bad.

The night here, 19:35 to 06:25 Fri, splits into 8 choghadiyas of 1 h 21 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′. Shatabhisha spans 306°40′–320°00′; the Moon entered its pada 1 at 306°40′. It leaves at 01:48 Fri, for Purva Bhadrapada.

Add the Sun's and the Moon's places among the stars: 358° + 309.9° = 667.9°, one full turn and 307.9°. Past the turn, cut into 27 parts of 13°20′, it gives the yoga: 306°40′–320°00′ is the 24th, Shukla. It ends at 03:52 Fri, then Brahma.

A karana is half a tithi: 6° of the Moon's lead, so the first half of Ekadashi is Bava and the second Balava. Bava ended at 18:01 Wed, when the lead reached 306°; Balava runs until 06:43.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 06:26 to 06:25 Fri, so the hours after midnight still belong to Guruwara.

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, 16 Apr, 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 16 Apr, with the Sun in Mesha, begins Vaishakha. Until then this Krishna paksha reads Vaishakha here, and Chaitra in the amanta count.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 17 Mar 2018, 17:11 Sat. Since then the Sun has moved 25.2° round the stars. Vikram Samvat numbers that year 2075; Shaka Samvat numbers it 1940.