How astrology times a marriage
Vedic astrology reads marriage from the 7th house, its lord, and Venus, the karaka (natural significator) of marriage. In a woman’s chart Jupiter is read for the husband as well.
A chart promises marriage through these planets. When it happens is read from the Vimshottari dashas: the mahadasha and antardasha periods of the planets that rule it.
What a marriage window is
A window is a dasha period whose lord is one of your marriage planets. It is strongest when both the mahadasha and the antardasha lords are marriage planets, because then both levels point the same way.
This check counts the windows in the next 12 years from today and picks out the strongest. Astrologers then confirm a window with Jupiter’s and Saturn’s transits over the 7th house and its lord.
Why the dates are in the chat
A date on its own says little. In the chat, your own chart is read for the window: when it opens and closes, what it favours, and what you can do in it, whether you are looking, engaged or waiting.
Why the full report goes further
The Marriage & Relationships report reads your 7th house, Venus and the navamsa together: the partner your chart describes, every window for marriage and commitment, and what keeps married life warm and steady.