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Alan
Asked: 2020-08-31 07:02:33 +0800 CST 2020-08-31 07:02:33 +0800 CST

How to get the difference of days between two dates in JavaScript?

  • 772

I need to find the difference in days between two dates, which I have as follows:

// el formato de estas es (yyyy-mm-dd)
// Corresponden al 12 de julio del 2016 hasta el 1 de agosto del 2016
var fechaInicio = '2016-07-12';
var fechaFin    = '2016-08-1';

If I try to subtract them as I have them there, the result is NaN. How could I solve it?

javascript

5 Answers

  1. You can get the milliseconds between the two dates and convert it to days:

    var fechaInicio = new Date('2016-07-12').getTime();
var fechaFin    = new Date('2016-08-01').getTime();

var diff = fechaFin - fechaInicio;

console.log(diff/(1000*60*60*24) );
                 // (1000*60*60*24) --> milisegundos -> segundos -> minutos -> horas -> días

    • 30
  2. Best Answer

    Simple solution, for javascript date manipulation use moment.js

    var fecha1 = moment('2016-07-12');
var fecha2 = moment('2016-08-01');

console.log(fecha2.diff(fecha1, 'days'), ' dias de diferencia');
    <script src="http://momentjs.com/downloads/moment.min.js"></script>

    The method diffallows you to find the difference in any unit and the syntax is

    moment.diff(moment, 'intervalo')

    To calculate the same but in hours

    var fecha1 = moment('2016-07-12');
var fecha2 = moment('2016-08-01');

console.log(fecha2.diff(fecha1, 'hours'), ' horas de diferencia');
    <script src="http://momentjs.com/downloads/moment.min.js"></script>

    • 26

  3. You get the difference in milliseconds and convert it to days.

    var date_1 = new Date('2015-2-15');
var date_2 = new Date('2015-3-13');

var day_as_milliseconds = 86400000;
var diff_in_millisenconds = date_2 - date_1;
var diff_in_days = diff_in_millisenconds / day_as_milliseconds;

console.log( diff_in_days );

    • 8

  4. This option only works if the date format is yy-mm-dd, if it comes in dd-mm-yy format, the date would have to be set

    var fechaInicio = $("#txt_fecha_desde_filtro").val().split("-");
var fechaFin = $("#txt_fecha_hasta_filtro").val().split("-");
var fechadesde = new Date(fechaInicio[2], fechaInicio[1]-1, fechaInicio[0]).getTime();
var fechahasta = new Date(fechaFin[2], fechaFin[1]-1, fechaFin[0]).getTime();    

var dias = fechahasta - fechadesde;
    var diff_ =dias/(1000 * 60 * 60 * 24);
    console.log(diff_);`
    • 1

  5. Yes with Moment.js you can do it

    (function()
{
  // instantiate a moment object
  var NowMoment = moment().format('DD/MM/YYYY');
  var Date =  '2018-09-06';
  
  // display value of moment object in #displayMoment div
  var eDisplayMoment = document.getElementById('displayMoment');
  eDisplayMoment.innerHTML = moment().diff(moment(Date), 'days');
  
  var eDisplayDate = document.getElementById('displayDate');
  eDisplayDate.innerHTML = NowMoment;
  
  var eDisplayOtherDate = document.getElementById('displayOtherDate');
  eDisplayOtherDate.innerHTML = Date;
})();
    <script src="http://momentjs.com/downloads/moment.js"></script>
<h2>HOY</h2>
<div id="displayDate"></div>

<h2>Otra Fecha</h2>
<div id="displayOtherDate"></div>

<h2>Diferencia en dias</h2>
<div id="displayMoment"></div>

    • 1