JSFiddle - React, Tailwind, and code Playground
JavaScript
var m_names =["Jan", "Feb", "Mar",
"Apr", "May", "Jun", "Jul", "Aug", "Sep",
"Oct", "Nov", "Dec"];
var d = new Date();
var spl = d.toString().split(' ');
var mnth = parseInt(m_names.indexOf(spl[1])+1).toString();
mnth = (mnth.length == 1) ? '0'+mnth : mnth
// yyyy mm dd hh:mm:ss
var data = spl[3]+'-'+mnth+'-'+spl[2]+' '+spl[4]
alert(data)