Panchang in Sevan, Gegharkunik, Armenia Sun 16 Oct 2039

Shiva’s worship centres on nishitha, the midnight muhurta. Chaturdashi runs from 03:23 on Sun 16 Oct to 01:30 on Mon 17 Oct, so only Sunday night’s nishitha (00:20 Mon–01:11 Mon) falls within it. No text giving Masik Shivratri’s time was found; nishitha is Tithika’s convention.

Masik Shivratri: every date in Sevan

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, 07:11 here. Trayodashi ended at 03:23, before it. Chaturdashi ends at 01:30 Mon, when the lead reaches 348°. The lead passed 180° at the full moon of 2 Oct, so the Moon is waning: Krishna paksha.

The night of Sat 15 Oct ran from sunset 18:20 Sat to sunrise 07:11, 12 h 51 m. Cut into 15 muhurtas of 51 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 07:11 to 18:19, splits into 8 choghadiyas of 1 h 23 m. Their names follow a fixed order that starts from the weekday, and each name is counted good, neutral or bad.

The night here, 18:19 to 07:12 Mon, splits into 8 choghadiyas of 1 h 36 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 Phalguni spans 146°40′–160°00′; the Moon entered its pada 3 at 153°20′. It leaves at 13:38, for Hasta.

Add the Sun's and the Moon's places among the stars: 178.2° + 156.3° = 334.5°. The sum, cut into 27 parts of 13°20′, gives the yoga: 333°20′–346°40′ is the 26th, Indra. It ends at 02:39 Mon, then Vaidhriti.

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 14:31, when the lead reaches 342°; Shakuni until 01:30 Mon.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 07:11 to 07:12 Mon, so the hours after midnight still belong to Raviwara.

A month normally holds one sankranti, the Sun's entry into a new rashi. From 18 Sep 12:23 Sun to 17 Oct 23:09 Mon the Sun stayed in Kanya, entering Tula at 18 Oct 02:25 Tue, after the new moon. A month with no sankranti is Adhika Ashwina, before Ashwina 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 17 Oct, with the Sun in Kanya, begins Ashwina (Adhik). Until then this Krishna paksha reads Ashwina (Adhik) here, and Ashwina (Adhik) in the amanta count.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 24 Mar 2039, 21:59 Thu. Since then the Sun has moved 198.7° round the stars. Vikram Samvat numbers that year 2096; Shaka Samvat numbers it 1961.