The Premier League 2020/21 start date is, as mentioned, the beginning of September, but when does the season end. In this 2020/21 season, the FA Cup, League Cup and Premier League will all be taking place as normal, as will the Europa League and the Champions League. With this said the 2020/21 Premier League season end date is May 12.
This isn't too different from the dates that normally occur within a regular season, but the start date is, of course, a month later. It will mean, however, games will be played more often, with the likelihood of two games a week set to come into play at some point around the winter period, especially for those out of Europe.