Computer Configuration\Windows Settings\Security Settings\Account Policies\Account Lockout Policy
Determines the number of minutes a locked out account remains locked out before automatically becoming unlocked. The range is 1 to 99999 minutes. You can specify that the account will be locked out until an administrator explicitly unlocks it by setting the value to 0.
By default, this policy is not defined, since it only has meaning when an Account lockout threshold is specified.
If an Account lockout threshold is defined, then the Account lockout duration must be greater than or equal to the reset time.