Your Vimshottari dasha shows the planetary period you are living through. This tool pinpoints the Mahadasha, Antardasha and Pratyantardasha running today — and when each changes.
A Mahadasha is a major planetary period in the 120-year Vimshottari cycle. Within it run shorter Antardasha and Pratyantardasha sub-periods that colour the results.
It is computed precisely from your Moon's nakshatra at birth, so an accurate birth date and time give exact period start and end dates.
For educational purposes. Astrological interpretations are traditional and not a substitute for professional advice.