JSFiddle - React, Tailwind, and code Playground

JavaScript

var string = "Born (1970-07-30) 30 July 1970 (age 43) London, UK";

var pattern = /\s(\d{1,2}\s[a-zA-Z]+\s\d{4})\s/

//fetch all matches back into an array
var result = string.match(pattern);

alert(result[1]);