It takes the normal Delay of VAC. Some Accounts getting banned later or earlier but mostly between 6 and 9 days in avarage.
Does VAC ban immediately?
VAC bans are permanent, non-negotiable, and cannot be removed by Steam Support. If a VAC ban is determined to have been issued incorrectly it will automatically be removed. If you wish to discuss Valve Anti-Cheat with the community, you may do so here.
How long is VAC ban delay?
VAC bans become hidden to other users after seven years of not getting another VAC ban.