Panchang in Ipameri, Goiás, Brazil Mon 19 Aug 2013

The Moon gains on the Sun about 12° a day. Each 12° of lead is one tithi: 156°–168° is the 14th, Shukla Chaturdashi. A day takes the tithi in force at its sunrise, 06:29 here. Trayodashi ended at 05:09, before it. Chaturdashi ends at 01:51 Tue, when the lead reaches 168°. The lead passed 0° at the new moon of 6 Aug, so the Moon is waxing: Shukla paksha.

A day takes the tithi in force at its sunrise.

New Delhi · IST

Sunrise here, 05:52, came before Trayodashi ended at 13:39: this day reads Trayodashi.

Ipameri · UTC−3

Sunrise here, 06:29, came after Trayodashi ended at 05:09: this day reads Chaturdashi.

The night of Sun 18 Aug ran from sunset 18:03 Sun to sunrise 06:29, 12 h 26 m. Cut into 15 muhurtas of 49 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 06:29 to 18:03, 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, 18:03 to 06:28 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′. Uttara Ashadha spans 266°40′–280°00′; the Moon entered its pada 4 at 276°40′. It leaves at 07:38, for Shravana.

Add the Sun's and the Moon's places among the stars: 122.5° + 279.3° = 401.8°, one full turn and 41.8°. Past the turn, cut into 27 parts of 13°20′, it gives the yoga: 40°00′–53°20′ is the 4th, Saubhagya. It ends at 23:57, then Shobhana.

A karana is half a tithi: 6° of the Moon's lead, so the first half of Chaturdashi is Garaja and the second Vanija. Garaja runs until 15:30, when the lead reaches 162°; Vanija until 01:51 Tue.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 06:29 to 06:28 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, 5 Sep, 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 6 Aug, with the Sun in Karka, began Shravana. This Shukla paksha reads Shravana in both counts.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 10 Apr 2013, 06:35 Wed. Since then the Sun has moved 125.9° round the stars. Vikram Samvat numbers that year 2070; Shaka Samvat numbers it 1935.