After how much time can you sell your crypto?

as i know you can sell ur stocks after t+2 days… what is the ruling on crypto ? after how long can you sell it ?

As i understand as long as you have ownership of it you can sell it. With crypto when you ‘buy it’, transactions usually take a few minutes if not seconds…

Just not sure why one would want to sell immediately - although price pumps can definitely take place within a short span of time (<1day or hour for sure)