I want to control the interval of the minutes and seconds widget into 1 instead of the default 5, I have tried the following, however it doesn't work. what should be the syntax of it?

ad_form -name myform -form {
    {rel_date:date
        {label "Released Date"}
    {minutes_interval { 0 59 1 }}
        {seconds_interval { 0 59 1 }}
        {format long}
    }
}

thanks
paul