Panchang in Ipameri, Goiás, Brazil Mon 20 Apr 2015

Akshaya Tritiya’s puja is done in purvahna, the first half of the day. Tritiya touches purvahna on both mornings. On Tue 21 Apr it ends at 08:35 Tue, within the first 3 muhurtas after sunrise (until 08:42 Tue), so the Dharmasindhu takes the earlier day: Mon 20 Apr.

Akshaya Tritiya: every date in Ipameri

The Moon gains on the Sun about 12° a day. Each 12° of lead is one tithi: 12°–24° is the 2nd, Shukla Dwitiya. A day takes the tithi in force at its sunrise, 06:23 here. Pratipada ended at 13:02 Sun, before it. Dwitiya ends at 10:32, when the lead reaches 24°. The lead passed 0° at the new moon of 18 Apr, so the Moon is waxing: Shukla paksha.

The night of Sun 19 Apr ran from sunset 18:00 Sun to sunrise 06:23, 12 h 23 m. Cut into 15 muhurtas of 49 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 06:23 to 18:00, 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, 18:00 to 06:23 Tue, 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′. Krittika spans 26°40′–40°00′; the Moon entered its pada 1 at 26°40′. It leaves at 03:26 Tue, for Rohini.

Add the Sun's and the Moon's places among the stars: 5.9° + 27.6° = 33.5°. The sum, cut into 27 parts of 13°20′, gives the yoga: 26°40′–40°00′ is the 3rd, Ayushmana. It ends at 16:36, then Saubhagya.

A karana is half a tithi: 6° of the Moon's lead, so the first half of Dwitiya is Balava and the second Kaulava. Balava ended at 23:43 Sun, when the lead reached 18°; Kaulava runs until 10:32.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 06:23 to 06:23 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: Mesha gives Vaishakha. The Sun enters Vrishabha on 15 May, inside the month. The next new moon, 18 May, finds it in Vrishabha and begins Jyeshtha.

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 18 Apr, with the Sun in Mesha, began Vaishakha. This Shukla paksha reads Vaishakha in both counts.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 20 Mar 2015, 06:36 Fri. Since then the Sun has moved 30.5° round the stars. Vikram Samvat numbers that year 2072; Shaka Samvat numbers it 1937.