After the formatting the date appears with 3 hours more

I had a problem turning a String into a date, and I was able to put it in the exact time, but now when I went to generate the notification, the blessed date appears with a few more hours, I did everything I thought it could be but not I get the solution

 {...
let dateFormatter = NSDateFormatter()
    dateFormatter.dateFormat = "dd MMM yyyy HH:mm"
    dateFormatter.locale = NSLocale.currentLocale()
    dateFormatter.timeZone = NSTimeZone.localTimeZone()
    let date2 = dateFormatter.dateFromString(dateStr4)
    dateFormatter.dateFormat = "dd/MM/yyyy HH:mm"

    if let unwrappedDate = date2 {
        print(dateFormatter.stringFromDate(unwrappedDate)) //26/09/2016 21:23
        criaNotificacoes(unwrappedDate, comIntervalo: util.valorIntervalo(campoIntervalo.text!), totalDias: util.valorTempoDias(campoPeriodo.text!))
    }else{
        print("tratar")
    }


}
func criaNotificacoes(dataInicio: NSDate, comIntervalo intervalo:Int, totalDias qtdDias:Int){
    print("data de inicio recebida --->",dataInicio)//2016-09-27 00:23:00
    let dateComponentes = NSDateComponents()
    let calendario = NSCalendar.currentCalendar()
    calendario.timeZone = NSTimeZone.localTimeZone()
    calendario.locale = NSLocale.currentLocale()
    dateComponentes.timeZone = NSTimeZone.localTimeZone()

    var fireDate: NSDate = NSDate()
    fireDate.descriptionWithLocale(NSLocale.currentLocale())

      fireDate = calendario.dateByAddingComponents(dateComponentes, toDate: dataInicio, options: NSCalendarOptions())!

    print(fireDate,"data inicio")//2016-09-27 00:23:00
}