Panchang in Ipameri, Goiás, Brazil Mon 13 Aug 1917

Smartas test Ekadashi at sunrise. It holds both sunrises, 06:33 on Sun 12 Aug and 06:33 on Mon 13 Aug. Ekadashi (05:22 Sun 12 Aug to 06:39 Mon 13 Aug) and Dwadashi (06:39 Mon 13 Aug to 08:25 Tue 14 Aug) are both longer than their day; when both grow, Smartas take the later day: Mon 13 Aug. Vaishnavas test arunodaya: on Sun 12 Aug Dashami lasts until 05:22, inside it (04:57–06:33); on Mon 13 Aug Ekadashi holds all of it.

Aja Ekadashi: every date in Ipameri

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, 06:33 here. Dashami ended at 05:22 Sun, before it. Ekadashi ends at 06:39, when the lead reaches 312°. The lead passed 180° at the full moon of 3 Aug, so the Moon is waning: Krishna paksha.

A day takes the tithi in force at its sunrise. Ekadashi began at 05:22 Sun, before sunrise at 06:33 Sun, and ends at 06:39, after the next sunrise at 06:33. Both days read Ekadashi: it is a vriddhi tithi here.

The night of Sun 12 Aug ran from sunset 18:01 Sun to sunrise 06:33, 12 h 32 m. Cut into 15 muhurtas of 50 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 06:33 to 18:01, 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 night here, 18:01 to 06:32 Tue, 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 fixed stars divide the Moon's path into 27 nakshatras of 13°20′, each in 4 padas of 3°20′. Ardra spans 66°40′–80°00′; the Moon entered its pada 1 at 66°40′. It leaves at 03:43 Tue, for Punarvasu.

Add the Sun's and the Moon's places among the stars: 117.3° + 69.3° = 186.6°. The sum, cut into 27 parts of 13°20′, gives the yoga: 173°20′–186°40′ is the 14th, Harshana. It ends at 06:39, then Vajra.

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 17:56 Sun, when the lead reached 306°; Balava runs until 06:39.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 06:33 to 06:32 Tue, so the hours after midnight still belong to Somawara.

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: Karka gives Shravana. The Sun enters Simha on 16 Aug, inside the month. The next new moon, 17 Aug, finds it in Simha and begins Bhadrapada.

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 17 Aug, with the Sun in Simha, begins Bhadrapada. Until then this Krishna paksha reads Bhadrapada here, and Shravana in the amanta count.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 23 Mar 1917, 01:04 Fri. Since then the Sun has moved 138° round the stars. Vikram Samvat numbers that year 1974; Shaka Samvat numbers it 1839.