Short answer
A good wedding date suits you both, your families and the venue, and falls in a traditionally favourable window. Families usually check compatibility first (Porutham or Guna matching), then choose a muhurta (auspicious time) for the ceremony city, avoiding each partner's Chandrashtama days. Find Good Times compares local windows; a full wedding muhurta uses both birth charts.
How ChiChakra reads this
For marriage timing, astrologers look at the 7th house, its ruling planet, Venus and Jupiter, and each partner's running Dasha. North Indian Ashta Koota matching scores 36 gunas, where 18 or more is traditionally acceptable; Tamil Porutham runs about 10 checks, with Rajju and Dina considered important and about 6 matches the usual benchmark. ChiChakra's tool reads local windows, not two charts together.
Choosing a date
List the dates your venue, priest and key guests can manage. Then check each one in Find Good Times for the ceremony's city and time zone.
Cross off any that fall on either partner's Chandrashtama days. Many families also prefer to avoid eclipse days and Amavasya (new Moon) for a wedding.
Take your best two or three options to your priest, who may add your community's own rules.
Good to know
Matching scores are a starting point; families weigh the whole chart and how the couple actually get on. Personal readings are coming, and you can join the waitlist.