Panchang in Sevan, Gegharkunik, Armenia Fri 18 Jun 1920

Rath Yatra follows the tithi at sunrise. Dwitiya runs from 12:47 on Thu 17 Jun to 09:03 on Fri 18 Jun, so it holds sunrise only on Fri 18 Jun, at 04:26. No text giving Rath Yatra’s time was found; sunrise is Tithika’s convention.

Rath Yatra: every date in Sevan

The Moon gains on the Sun about 12° a day. Each 12° of lead is one tithi: 12°–24° is the 2nd, Shukla Dwitiya. A day takes the tithi in force at its sunrise, 04:28 here. Pratipada ended at 12:49 Thu, before it. Dwitiya ends at 09:05, when the lead reaches 24°. The lead passed 0° at the new moon of 16 Jun, so the Moon is waxing: Shukla paksha.

The night of Thu 17 Jun ran from sunset 19:32 Thu to sunrise 04:28, 8 h 56 m. Cut into 15 muhurtas of 35 m, its 14th is Brahma Muhurta, the one before the last.

Daylight here, 04:28 to 19:32, splits into 8 choghadiyas of 1 h 53 m. Their names follow a fixed order that starts from the weekday, and each name is counted good, neutral or bad.

The night here, 19:32 to 04:28 Sat, splits into 8 choghadiyas of 1 h 7 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′. Punarvasu spans 80°00′–93°20′; the Moon entered its pada 2 at 83°20′. It leaves at 17:43, for Pushya.

Add the Sun's and the Moon's places among the stars: 63.7° + 85° = 148.7°. The sum, cut into 27 parts of 13°20′, gives the yoga: 146°40′–160°00′ is the 12th, Dhruva. It ends at 21:20, then Vyaghata.

A karana is half a tithi: 6° of the Moon's lead, so the first half of Dwitiya is Balava and the second Kaulava. Balava ended at 22:56 Thu, when the lead reached 18°; Kaulava runs until 09:05.

A Hindu day runs from one sunrise to the next, not midnight to midnight. This one runs 04:28 to 04:28 Sat, so the hours after midnight still belong to Shukrawara.

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: Mithuna gives Ashadha. The Sun enters Karka on 15 Jul, inside the month. The next new moon, 15 Jul, finds it in Karka and begins Shravana.

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 Jun, with the Sun in Mithuna, began Ashadha. This Shukla paksha reads Ashadha in both counts.

A samvat year begins with Chaitra, the month whose new moon finds the Sun in Meena: 20 Mar 1920, 13:55 Sat. Since then the Sun has moved 86.9° round the stars. Vikram Samvat numbers that year 1977; Shaka Samvat numbers it 1842.