Change the name of a local datetime field:
document.getElementById("myLocalDate").name = "newDatetimeName";
Click the buttons to display/change the name attribute of the local datetime field.
<!DOCTYPE html> <html> <body> Birthday: <input type="datetime-local" id="myLocalDate" name="bdaytime"> <p id="demo"></p> <button onclick="display()">Display name</button> <button onclick="change()">Change name</button> <script> function display() { var x = document.getElementById("myLocalDate").name; document.getElementById("demo").innerHTML = "The name of the local datetime field is: " + x; } function change() {/*from w w w . j a va2s . c om*/ var x = document.getElementById("myLocalDate").name = "newDatetimeName"; document.getElementById("demo").innerHTML = "The name was changed to: " + x; } </script> </body> </html>