to get the date form the client computer, you would need to use javascript to set a hidden form element, then in the insert record behavior, bind the date column to the hidden form element.
put this script in the head of your page before the </head> tag:
<script type="text/javascript">
function setDate() {
var theDate = new Date();
var dateStr = theDate.getMonth()+'/'+theDate.getDay()+'/'+theDate.getFullYear();
document.getElementById('form1').formdate.value=dateStr;
}
</script>
This script assumes that the form ID is "form1" and the hidden form element is named "formdate" if you use different form ID and element name, you will need to edit the script
then set the body onload event to call the function:
<body onLoad="setDate()">
Then when binding the date column to the new formdate hidden form element, the code produced will be:
<?php echo((isset($_POST["formdate"]))?$_POST["formdate"]:"") ?>
add the strtotime function to convert the date to the timestamp format:
<?php echo((isset($_POST["formdate"]))?strtotime($_POST["formdate"]):"") ?>