private extractTimeFromDate(date: Date) {
    let hours = String(date.getHours());
    let minutes = String(date.getMinutes());

    if(date.getHours() < 10) {
      hours = '0' + date.getHours();
    }

    if(date.getMinutes() < 10) {
      minutes = '0' + date.getMinutes();
    }

    return hours + ':' + minutes;
  }