Timing & dasha
Vimshottari Dasha
Vimshottari Dasha is the 120-year planetary period system described in the Brihat Parashara Hora Shastra, calculated from the Moon's Nakshatra at birth. It runs nine Mahadashas in a fixed order and is the default Dasha system in modern Vedic practice.

Related terms
- Mahadasha
Mahadasha is the 'major period' of the Vimshottari Dasha system — a stretch of 6 to 20 years ruled by one of the nine grahas. The nine Mahadashas run in a fixed order and total 120 years, and the one running now is the most consulted operative timing marker in Vedic astrology.
- Nakshatra
Nakshatra is one of the 27 lunar mansions of Vedic astrology, each spanning 13°20′ of the zodiac — a finer division than the twelve Rashis. The Moon's Nakshatra at birth sets the starting point of the Vimshottari Dasha and is read as a strong indicator of disposition.