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<!DOCTYPE html> <html> <body> <h1>JavaScript Dates</h1> <p>Add zeros and colons to display the UTC 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.getUTCHours(), 2); let m = addZero(d.getUTCMinutes(), 2); let s = addZero(d.getUTCSeconds(), 2); let ms = addZero(d.getUTCMilliseconds(), 3); let time = h + ":" + m + ":" + s + ":" + ms; document.getElementById("demo").innerHTML = time; </script> </body> <!-- /jsref/tryit.asp?filename=tryjsref_datetime_millisec_utc Thu, 06 Feb 2025 18:35:40 GMT --> </html>
