Panchang in Khmelnytskyi, Ukraine Mon 13 Jul 2015

Shiva’s Pradosh puja is done in pradosha, the 3 muhurtas after sunset. Trayodashi runs from 04:56 on Mon 13 Jul to 04:20 on Tue 14 Jul, so only Monday’s pradosha (21:15–22:52) falls within it. No text giving Pradosh Vrat’s time was found; pradosha is Tithika’s convention.

Pradosh Vrat: every date in Khmelnytskyi

The Moon gains on the Sun about 12° a day. Each 12° of lead is one tithi: 324°–336° is the 28th, Krishna Trayodashi. A day takes the tithi in force at its sunrise, 05:19 here. Dwadashi ended at 04:56, before it. Trayodashi ends at 04:20 Tue, when the lead reaches 336°. The lead passed 180° at the full moon of 2 Jul, so the Moon is waning: Krishna paksha.

A day takes the tithi in force at its sunrise.

New Delhi · IST

Sunrise here, 05:32, came before Dwadashi ended at 07:26: this day reads Dwadashi.

Khmelnytskyi · UTC+3

Sunrise here, 05:19, came after Dwadashi ended at 04:56: this day reads Trayodashi.

The night of Sun 12 Jul ran from sunset 21:16 Sun to sunrise 05:19, 8 h 3 m. Cut into 15 muhurtas of 32 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 05:19 to 21:15, splits into 8 choghadiyas of 1 h 59 m. Their names follow a fixed order that starts from the weekday, and each name is counted good, neutral or bad.

The night here, 21:15 to 05:20 Tue, splits into 8 choghadiyas of 1 h 0 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 4 at 50°. It leaves at 10:22, for Mrigashira.

Add the Sun's and the Moon's places among the stars: 86.3° + 50.5° = 136.8°. The sum, cut into 27 parts of 13°20′, gives the yoga: 133°20′–146°40′ is the 11th, Vriddhi. It ends at 21:50, then Dhruva.

A karana is half a tithi: 6° of the Moon's lead, so the first half of Trayodashi is Garaja and the second Vanija. Garaja runs until 16:35, when the lead reaches 330°; Vanija until 04:20 Tue.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 05:19 to 05:20 Tue, so the hours after midnight still belong to Somawara.

A month normally holds one sankranti, the Sun's entry into a new rashi. From 16 Jun 17:05 Tue to 16 Jul 04:24 Thu the Sun stayed in Mithuna, entering Karka at 17 Jul 01:32 Fri, after the new moon. A month with no sankranti is Adhika Ashadha, before Ashadha itself.

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 16 Jul, with the Sun in Mithuna, begins Ashadha (Adhik). Until then this Krishna paksha reads Ashadha (Adhik) here, and Ashadha (Adhik) in the amanta count.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 20 Mar 2015, 11:36 Fri. Since then the Sun has moved 110.9° round the stars. Vikram Samvat numbers that year 2072; Shaka Samvat numbers it 1937.