Is there anytime Bitcoin can be deposited and also be withdraw
You can deposit and withdraw Bitcoins anytime according to your convenience. Is not like stocks where you have to wait till you spend the required timeframe.
I do think that you have to work on elaborating your questions more.
But in the same context, there are things like
Bitcoin futures, a company where this this are regulated to an extent.
I do think op means if he does have the freedom to buy/sell as he please.
Just download a good trading platform or wallet and you are ready to go 🌞🌞
Best of luck with your future search and please don't forget to elaborate more