in app/com/gu/itunes/iTunesRssItem.scala [316:324]
private def convertDate(seconds: Option[Int], minutes: Option[Int]): String = {
val totalSec = minutes.getOrElse(0) * 60 + seconds.getOrElse(0)
val hrs = totalSec / 3600
val rst = totalSec % 3600
val min = rst / 60
val sec = rst % 60
s"${if (hrs < 10) "0" + hrs else hrs}:${if (min <= 9) "0" + min else min}:${if (sec <= 9) "0" + sec else sec}"
}