CODE EXAMPLE FOR JAVASCRIPT

how to find dates in a string in js

var str = 'Test  Client wants to reschedule your call from 2021-02-18 06:30:00+00:00 to 2021-02-18T07:00';

var res = str.match(/d{2}([/.-])d{2}1d{4}/g);

document.getElementById('out').value = res;