in src/components/RecordDetails.js [79:90]
function calcDuration(startTime, endTime) {
if (startTime && endTime) {
var st = moment(startTime)
var et = moment(endTime)
var duration = moment.duration(et.diff(st))
return duration.minutes() + " minutes and " + duration.seconds() + " seconds"
} else {
return ''
}
}