Formatting date and time with Javascript? [duplicate]

You can use momentjs that does all the work of date formatting , calculations , etc :

moment.locale('pt-br');
console.log(moment('2017-01-05T14:35:17.437').format('DD-MM-YYYY'));

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script><scriptsrc="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.17.1/moment-with-locales.min.js"></script>

but can also be done with pure javascript :

var data = '2017-01-05T14:35:17.437';
var parte = data.substring(0,10).split('-').reverse().join('-');
console.log(parte);

• momentjs - Parse, validate, manipulate, and display dates in JavaScript.
• JavaScript String substring () Method
• JavaScript String split () Method
• JavaScript Array reverse () Method
• JavaScript Array join () Method

Just see how to string your date and test it:

Ex:

var formatoCompleto = "2017-01-05T14:35:17.437";
var dataFormatada = formatoCompleto.substring(0,formatoCompleto.indexOf("T"));
var dadosData = dataFormatada.split("-");

var dataFinal = dadosData[2]+"-"+dadosData[1]+"-"+dadosData[0];
console.log(dataFinal);