My clock on my computer is now set to military time after an antivirusxp intrusion. I think i got it removed by using Malewarebytes but i cannot reset it to regular time. Is there a way to do this?

So whats wrong with the twenty hour clock (military time). Just start counting on your fingers. Do you not have other clocks ?

system restore is working? try that out.
control panel+ Date and time or,
control panel+display

Note: antivirusxp is the most annoying malware i have seen.