Hold a wedding reception and watch the Gregorian calendar

Amitabha! Of course, it is necessary to choose an auspicious day to get married and hold a banquet according to folk customs. However, according to your introduction, you just want to invite colleagues and classmates to get together on this grounds, and you don't intend to hold any ceremony, so you don't have to be too particular. Considering that your classmates and colleagues will have things to study or work, you can give priority to arranging a treat when everyone is resting on weekends, so that you and the guests can be invited conveniently. Don't you think?