Panchang in Davinópolis, Maranhão, Brazil Fri 16 Jan 1981

Smartas test Ekadashi at sunrise: it holds sunrise on Fri 16 Jan only, at 06:07: Fri 16 Jan. Vaishnavas test arunodaya: Dashami ended at 13:38 Thu, before it (04:31–06:07).

Pausha Putrada Ekadashi: every date in Davinópolis

The Moon gains on the Sun about 12° a day. Each 12° of lead is one tithi: 120°–132° is the 11th, Shukla Ekadashi. A day takes the tithi in force at its sunrise, 06:07 here. Dashami ended at 13:38 Thu, before it. Ekadashi ends at 11:25, when the lead reaches 132°. The lead passed 0° at the new moon of 6 Jan, so the Moon is waxing: Shukla paksha.

The night of Thu 15 Jan ran from sunset 18:31 Thu to sunrise 06:07, 11 h 36 m. Cut into 15 muhurtas of 46 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 06:07 to 18:31, 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, 18:31 to 06:07 Sat, 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 fixed stars divide the Moon's path into 27 nakshatras of 13°20′, each in 4 padas of 3°20′. Rohini spans 40°00′–53°20′; the Moon entered its pada 1 at 40°. It leaves at 01:51 Sat, for Mrigashira.

Add the Sun's and the Moon's places among the stars: 272.6° + 41.7° = 314.3°. The sum, cut into 27 parts of 13°20′, gives the yoga: 306°40′–320°00′ is the 24th, Shukla. It ends at 15:12, then Brahma.

A karana is half a tithi: 6° of the Moon's lead, so the first half of Ekadashi is Vanija and the second Vishti. Vanija ended at 00:31, when the lead reached 126°; Vishti runs until 11:25.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 06:07 to 06:07 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: Dhanu gives Pausha. The Sun enters Makara on 13 Jan, inside the month. The next new moon, 4 Feb, finds it in Makara and begins Magha.

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 6 Jan, with the Sun in Dhanu, began Pausha. This Shukla paksha reads Pausha in both counts.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 16 Mar 1980, 15:55 Sun. Since then the Sun has moved 299.8° round the stars. Vikram Samvat numbers that year 2037; Shaka Samvat numbers it 1902.