<html>
<body>
Date: <input type="datetime" id="myDatetime">
<p>Click the button to set a date and time for the datetime field.</p>
<button onclick="myFunction()">Try it</button>
<p><strong>Note:</strong> input elements with type="datetime" do not show as any datetime field/calendar in any of the major browsers, except Safari.</p>
<p id="demo"></p>
<script>
function myFunction() {
document.getElementById("myDatetime").value = "2014-01-02T11:42Z";
}
</script>
</body>
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</html>