+function durationToString (duration: number) {
+ const hours = Math.floor(duration / 3600)
+ const minutes = Math.floor((duration % 3600) / 60)
+ const seconds = duration % 60
+
+ const minutesPadding = minutes >= 10 ? '' : '0'
+ const secondsPadding = seconds >= 10 ? '' : '0'
+ const displayedHours = hours > 0 ? hours.toString() + ':' : ''
+
+ return displayedHours + minutesPadding + minutes.toString() + ':' + secondsPadding + seconds.toString()
+}
+