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<html><body>Time: <input type="time" id="myTime" step="5"><p>Click the button to display the value of the step attribute of the time field (seconds interval).</p><button onclick="myFunction()">Try it</button><p id="demo"></p><script>function myFunction() { var x = document.getElementById("myTime").step; document.getElementById("demo").innerHTML = x;}</script></body></html>