2025 Summer Calendar Schedule Iii –. Fia formula 3 has announced today the calendar for the 2025 fia formula 3 championship. Classes begin, add/drop and late registration begins.
Next season will consist of a total of 10 rounds again, all support. Summer 2025 starts on friday, june 20th in the northern hemisphere, with the first day of summer being the longest daylight day of the year with the earth’s axis.