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<html><body><h2>Use select() to select the content of a Datetime Field</h2>A datetime text field: <input type="datetime" id="myDatetime" value="2014-02-06T10:57Z"><p>Click the button to select the content of the datetime field.</p><button type="button" onclick="myFunction()">Try it</button><script>function myFunction() { document.getElementById("myDatetime").select();}</script></body></html>