The F1 calendar is a schedule that outlines the dates and locations of each race in the Formula 1 season. Typically, the season runs from March to December, featuring around 20 to 23 races held in various countries. Each race weekend includes practice sessions, qualifying, and the main race on Sunday. The calendar is subject to change due to various factors, including weather conditions and global events. Each race is held at a specific circuit, such as Monaco or Silverstone, and the calendar helps fans and teams plan their attendance and participation throughout the season.