JSFiddle - React, Tailwind, and code Playground

by Emre Erkan

HTML

<input type="text" id="sn" />
<input type="text" id="time" />
<input type="button" id="convert" value="Dönüştür" />

JavaScript

Number.prototype.toTime = function() {
    var h = Math.floor(this / 3600), m = Math.floor((this - h * 3600) / 60), s = this - (h * 3600 + m * 60);
    return [ h < 10 ? 0 : '', h, ':', m < 10 ? 0 : '', m, ':', s < 10 ? 0 : '', s].join('');
}
$(document).on('click', '#convert', function(e) {
    e.preventDefault();
    $('#time').val(parseInt($('#sn').val(), 10).toTime());
});