This policy establishes a minimum number of days that must pass before the password is allowed to be changed again. This policy, in combination with the Enforce password hisory policy, can be used to make sure that users don't just keep resetting their password until they can use the same one again. If the Enforce password history policy is enabled, this policy should be set for at least 3 days.
The Minimum Password Age can never be higher than the Maximum Password Age. If the Maximum Password Age is disabled, or set to 0, the Minimum Password Age can be set for any number between 0 and 998 days.