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<!DOCTYPE html> <html> <body> <h1>JavaScript Dates</h1> <p>Add zeros and colons to display the time:</p> <p id="demo"></p> <script> function addZero(x,n) { while (x.toString().length < n) { x = "0" + x; } return x; } const d = new Date(); let h = addZero(d.getHours(), 2); let m = addZero(d.getMinutes(), 2); let s = addZero(d.getSeconds(), 2); let ms = addZero(d.getMilliseconds(), 3); let time = h + ":" + m + ":" + s + ":" + ms; document.getElementById("demo").innerHTML = time; </script> </body> </html>
