<html><body>Birthday: <input type="datetime-local" id="myLocalDate" name="bdaytime"><p>Click the button to display the value of the name attribute of the local datetime field.</p><button onclick="myFunction()">Try it</button><p><strong>Note:</strong> input elements with type="datetime-local" do not show as any datetime field/calendar in Firefox.</p><p id="demo"></p><script>function myFunction() { var x = document.getElementById("myLocalDate").name; document.getElementById("demo").innerHTML = x;}</script></body></html>