public class PMDayTimeRestriction : PMRestriction

try
{
    //Get user object
    PMUser user = PMUser.LookupUser("Administrator", "domain.local");

    if (user != null)
    {

        //Set a DayTime restriction on this user

        //create a day time range from 8AM - 6PM that will be used for Monday through Friday
        DayTimeRange Allowed_8AM_to_6PM_Example = new DayTimeRange(true, new DateTime(1, 1, 1, 8, 0, 0) /* 0800 Time (Date Ignored) */ , new DateTime(1, 1, 1, 18, 0, 0) /* 1800 (Date Ignored) */);

        //create a day time range from 10AM - 4PM that will be used for Saturday
        DayTimeRange Allowed_10AM_to_4PM_Example = new DayTimeRange(true, new DateTime(1, 1, 1, 10, 0, 0) /* 1000 Time (Date Ignored) */ , new DateTime(1, 1, 1, 16, 0, 0) /* 1600 (Date Ignored) */ );

        //create a day time range that does not allowing any printing for Sunday
        DayTimeRange NotAllowed_Example = new DayTimeRange(false, null, null);


        //Set the daytime ranges on this user
        user.DayTimeRestriction.Enable(Allowed_8AM_to_6PM_Example,      //Monday
                                        Allowed_8AM_to_6PM_Example,     //Tuesday
                                        Allowed_8AM_to_6PM_Example,     //Wednesday
                                        Allowed_8AM_to_6PM_Example,     //Thursday
                                        Allowed_8AM_to_6PM_Example,     //Friday
                                        Allowed_10AM_to_4PM_Example,    //Saturday
                                        NotAllowed_Example);            //Sunday

    }

}
catch
{
    //Error handling - See PM90SettingsAPI.Exceptions
}