How marriage timing is read in Vedic astrology
Astrologers look at the 7th house (partnership), its lord, Venus (the natural significator of love and marriage), and for women also Jupiter. Marriage tends to happen in a dasha or sub-period of planets connected to these, while the transits of Jupiter and Saturn are supportive of the 7th house at the same time (the "double transit").
Our tool does exactly that. For every sub-period (antardasha) in the next twelve years it scores how strongly the running planets relate to marriage, adds credit for months when Jupiter and Saturn both influence your 7th house, and shows the best windows with the reasons behind each.
What to expect, honestly
You get favourable windows, not dates. A strong window means the chart supports marriage then; it cannot say who, where or whether you will choose it. Circumstances, family and personal choices matter far more than any chart, so read the result as timing weather rather than a promise.