simples_client/public/js/cronometro.js

let cron
let segundos = 0;
let minutos = 0;

$(function(){
    $('#voicerecorder').on('click', function(){
        start()
    })
    $('.modal-content-body').on('click', '#stoprecorder', function(){
        pause()
    })
})

const addZero = (time) => {
    if(time < 10){
        time = "0" + time
    }
    return time
}

function start() {
    segundos = 0
    minutos = 0
    pause();
    cron = setInterval(() => {
        timer();
    }, 1005); 
}

function pause() {
    clearInterval(cron);
}

function timer() {
    segundos++;
    if (segundos == 60) {
        minutos++;
        segundos = 0;
    }
    $('#minutes').text(addZero(minutos))
    $('#seconds').text(addZero(segundos))
}

function converdata(timestamp, horario_server = false){
    if(horario_server){
        timestamp = timestamp * 1000
    }
    
    let date = new Date(timestamp);
    let day = addZero(date.getDate())
    let month = addZero(date.getMonth() + 1)
    let hours = date.getHours();
    let minutes = date.getMinutes();
    let formattedTime = `${day}/${month} ` + addZero(hours) + ':' + addZero(minutes)
    return formattedTime
}