preposition
in, at, or to a place before (someone or something)
in the future for (someone or something)
having a lead or advantage over (a competitor)
better than (something)
in a more advanced position than (someone or something)
If you are ahead of your time or if your ideas, creations, etc., are ahead of their time, you are too advanced or modern to be understood or appreciated during the time when you live or work.
at an earlier time than (someone or something) :sooner than (someone or something)