Why can't teams in the same time zone meet in the Champions League?

No-the draw rules for the Champions League group stage, clubs in the same country can't meet in the group stage. No matter how many times you attend. According to the rules of UEFA, the top 32 matches will be divided into four grades, with 8 teams in each grade, and each group has a team of different grades. Among them, the top seven champions in the Champions League and the champions in last season will automatically become the seed teams and enter the first gear. The remaining 24 teams will rank second to fourth according to their respective UEFA points. In the lottery, clubs in the same league will be automatically avoided in the group stage.