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<html>
<head>
<title>GMT Calculator</title>
<script type="text/javascript">
function calcGMT(form) {
var date = new Date(form.year.value, form.month.value, form.date.value,
form.hour.value, form.minute.value, form.second.value);
form.output.value = date.toUTCString();
}
</script>
</head>
<body>
<form>
<b>Enter a local date/time</b><br>
Year:<input type="text" name="year" value="0000"><br>
Month (0-11):<input type="text" name="month" value="0"><br>
Date (1-31):<input type="text" name="date" value="0"><br>
Hour (0-23):<input type="text" name="hour" value="0"><br>
Minute (0-59):<input type="text" name="minute" value="0"><br>
Second (0-59):<input type="text" name="second" value="0"><br>
<input type="button" value="Get GMT" onclick="calcGMT(this.form)"><br>
GMT: <input type="text" name="output" size="60">
</body>
</html>
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