Panchang in Ipameri, Goiás, Brazil Tue 14 Apr 2015

The Sun enters Mesha at 05:17, after sunset (18:05 Mon), so the next day keeps it: Tue 14 Apr. No text giving Mesha Sankranti’s time was found; sankranti is Tithika’s convention.

Mesha Sankranti: every date in Ipameri

Smartas test Ekadashi at sunrise. It begins at 07:32 on Tue 14 Apr, after that sunrise (06:21), and ends at 04:44 on Wed 15 Apr, before the next (06:21 Wed): it holds no sunrise. A kshaya Ekadashi is kept on the day it is current: Tue 14 Apr.

Varuthini Ekadashi: every date in Ipameri

The Moon gains on the Sun about 12° a day. Each 12° of lead is one tithi: 288°–300° is the 25th, Krishna Dashami. A day takes the tithi in force at its sunrise, 06:21 here. Navami ended at 09:58 Mon, before it. Dashami ends at 07:32, when the lead reaches 300°. The lead passed 180° at the full moon of 4 Apr, so the Moon is waning: Krishna paksha.

A day takes the tithi in force at its sunrise. Ekadashi began at 07:32 and ended at 04:44 Wed, between the sunrises of 06:21 and 06:21 Wed. Tuesday reads Dashami and Wednesday reads Dwadashi: Ekadashi is a kshaya tithi here.

The night of Mon 13 Apr ran from sunset 18:05 Mon to sunrise 06:21, 12 h 16 m. Cut into 15 muhurtas of 49 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 06:21 to 18:04, 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, 18:04 to 06:21 Wed, 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′. Dhanishtha spans 293°20′–306°40′; the Moon entered its pada 2 at 296°40′. It leaves at 18:24, for Shatabhisha.

Add the Sun's and the Moon's places among the stars: 0° + 299.4° = 299.4°. The sum, cut into 27 parts of 13°20′, gives the yoga: 293°20′–306°40′ is the 23rd, Shubha. It ends at 17:35, then Shukla.

A karana is half a tithi: 6° of the Moon's lead, so the first half of Dashami is Vanija and the second Vishti. Vanija ended at 20:48 Mon, when the lead reached 294°; Vishti runs until 07:32.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 06:21 to 06:21 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: Meena gives Chaitra. The Sun enters Mesha on 14 Apr, inside the month. The next new moon, 18 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 18 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: 20 Mar 2015, 06:36 Fri. Since then the Sun has moved 24.6° round the stars. Vikram Samvat numbers that year 2072; Shaka Samvat numbers it 1937.