JSFiddle - React, Tailwind, and code Playground

JavaScript

var x = "1.03:45:00".split('.');
var y = x[0] + ' Day';
var z = x[1].split(':');
var str = y + ' ' + z[0] + 'hours ' + z[1] + 'minutes ' + z[2] + 'second';
console.log(str);
alert(str);