js dátum do formátu
var date = new Date('1970-01-01'); // Or your date here
console.log((date.getMonth() + 1) + '/' + date.getDate() + '/' + date.getFullYear());
Formát Dátumu Javascript
const dateStr = '2020-06-21T10:15:00Z',
[yyyy,mm,dd,hh,mi] = dateStr.split(/[/:\-T]/)
console.log(`${dd}-${mm}-${yyyy} ${hh}:${mi}`)