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<html><body><form action="https://www.w3schools.com/action_page.php"> Date: <input type="datetime-local" id="myLocalDate" name="date" required> <input type="submit"></form><p>Click the "Try it" button to find out if the local datetime field must be filled out before submitting the form.</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").required; document.getElementById("demo").innerHTML = x;}</script></body><!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_datetime-local_required by HTTrack Website Copier/3.x [XR&CO'2014], Wed, 21 Dec 2022 18:16:54 GMT --></html>