[Vuejs]-Invalide date after converting epoch time vue.js

var sec = 1588351494;
var res =new Date(sec * 1000);  // multiply seconds with 1000 to convert it to ms.

Check the fiddle: https://jsfiddle.net/vf74h5n0/4/

To format date in “DD/MM/YYYY” you can use momentjs.

var date = new Date(1588351494 * 1000);
moment(date).format("DD/MM/YYYY");

Here is a example https://jsfiddle.net/vf74h5n0/5/