Why do we have a rule that marriage must be at noon?
Because the morning is reserved for guests to attend the preparation. In the morning, the groom will greet and pick up the bride, and the motorcade will take the bride and groom to the banquet place. After finishing a series of things, wine can be served at noon.
The wedding begins in the early morning and is used to witness the wedding and entertain guests at noon. One advantage of doing it in the morning is that the afternoon time is relatively free. Guests attending the wedding can try to leave later, or stay for afternoon tea, dinner parties, bridal chambers and so on. The wedding will be held at noon, and some people will choose 1 1: 58 or 1 1: 56. There is no unified statement. There will never be a wedding in the north at night. The local custom is that a wedding in the evening means a second marriage.
The bride usually gets up early on the wedding day and asks the makeup artist to put makeup on her head. In some places, especially in the rural areas in the north, the head is fixed the night before the wedding, so the bride can't sleep all night and will be very tired.
Getting married in the morning is a custom that gradually rose after liberation, and some places in the south still retain the tradition of getting married at night. In traditional culture, the custom is to faint in the morning. In the morning, the man goes to the woman's house to marry the bride, and the wedding is held at dusk. The ceremony of "unconsciousness" refers to the moment when day and night alternate and yin and yang combine, which is the best time to get married.
Generally speaking, the customs of each place are different, and following the tradition is a respect for both families. It is precisely because of different local customs that the world will be colorful.