On Monday, 21 December 2026, it is Trayodashi of Shukla Paksha, in the month of Posh. The day falls on a Somavara, traditionally ruled by Moon, with the Moon resting in Krittika nakshatra. Trayodashi is considered an auspicious tithi, so it is a favorable day for new beginnings, ceremonies, or important decisions. Between 8:23 AM and 9:32 AM, Rahu Kaal is in effect; elders advise against starting anything new during this window. The most auspicious moment of the day is Abhijit Muhurta, from 11:30 AM to 12:07 PM — a good slot for anything important. Vrat: પ્રદોષ is observed on Monday, 21 December 2026, an important fasting day in the Gujarati tradition.
Thirteenth day — good for ceremonies and important decisions
Accomplished — excellent for new ventures
Trayodashi is the 13th day of Shukla Paksha in the month of Posh. Thirteenth day — good for ceremonies and important decisions In the Gujarati Amanta tradition, months end on Amavasya (new moon).
Siddha is one of 27 Yogas in Vedic astrology, calculated from the combined longitudes of Sun and Moon. Accomplished — excellent for new ventures The Moon is in Krittika Nakshatra (Pada 1) — Sharp, purifying energy — favors courage, cutting through obstacles, and fire rituals.