JavaScriptは秒数をhh:mm:ssの形に変換します.

timeFilter (seconds) {
        var ss = parseInt(seconds)//  
        var mm = 0//  
        var hh = 0//   
        if (ss > 60) {
          mm = parseInt(ss / 60)
          ss = parseInt(ss % 60)
        }
        if (mm > 60) {
          hh = parseInt(mm / 60)
          mm = parseInt(mm % 60)
        }
        var result = ('00' + parseInt(ss)).slice(-2)
        if (mm > 0) {
          result = ('00' + parseInt(mm)).slice(-2) + ':' + result
        } else {
          result = '00:' + result
        }
        if (hh > 0) {
          result = ('00' + parseInt(hh)).slice(-2) + ':' + result
        }
        return result
      }