Panchang in Sofia, Sofia-Capital, Bulgaria Tue 12 Jun 2018

Shiva’s worship centres on nishitha, the midnight muhurta. Chaturdashi runs from 05:04 on Tue 12 Jun to 02:04 on Wed 13 Jun, so only Tuesday night’s nishitha (01:09 Wed–01:44 Wed) falls within it. No text giving Masik Shivratri’s time was found; nishitha is Tithika’s convention.

Masik Shivratri: every date in Sofia

The Moon gains on the Sun about 12° a day. Each 12° of lead is one tithi: 336°–348° is the 29th, Krishna Chaturdashi. A day takes the tithi in force at its sunrise, 05:48 here. Trayodashi ended at 05:04, before it. Chaturdashi ends at 02:04 Wed, when the lead reaches 348°. The lead passed 180° at the full moon of 29 May, so the Moon is waning: Krishna paksha.

A day takes the tithi in force at its sunrise.

New Delhi · IST

Sunrise here, 05:22, came before Trayodashi ended at 07:34: this day reads Trayodashi. Chaturdashi ends at 04:34 Wed, before the next sunrise, so no day here reads Chaturdashi: it is kshaya.

Sofia · UTC+3

Sunrise here, 05:48, came after Trayodashi ended at 05:04: this day reads Chaturdashi.

The night of Mon 11 Jun ran from sunset 21:04 Mon to sunrise 05:48, 8 h 44 m. Cut into 15 muhurtas of 34 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 05:48 to 21:05, splits into 8 choghadiyas of 1 h 54 m. Their names follow a fixed order that starts from the weekday, and each name is counted good, neutral or bad.

The night here, 21:05 to 05:48 Wed, splits into 8 choghadiyas of 1 h 5 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 3 at 33°20′. It leaves at 16:36, for Rohini.

Add the Sun's and the Moon's places among the stars: 57° + 33.4° = 90.4°. The sum, cut into 27 parts of 13°20′, gives the yoga: 80°00′–93°20′ is the 7th, Sukarma. It ends at 10:18, then Dhriti.

A karana is half a tithi: 6° of the Moon's lead, so the first half of Chaturdashi is Vishti and the second Shakuni. Vishti runs until 15:37, when the lead reaches 342°; Shakuni until 02:04 Wed.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 05:48 to 05:48 Wed, so the hours after midnight still belong to Mangalawara.

A month normally holds one sankranti, the Sun's entry into a new rashi. From 15 May 14:47 Tue to 13 Jun 22:43 Wed the Sun stayed in Vrishabha, entering Mithuna at 15 Jun 09:06 Fri, after the new moon. A month with no sankranti is Adhika Jyeshtha, before Jyeshtha 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 13 Jun, with the Sun in Vrishabha, begins Jyeshtha (Adhik). Until then this Krishna paksha reads Jyeshtha (Adhik) here, and Jyeshtha (Adhik) in the amanta count.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 17 Mar 2018, 15:11 Sat. Since then the Sun has moved 84.2° round the stars. Vikram Samvat numbers that year 2075; Shaka Samvat numbers it 1940.