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<body>
<h1>JavaScript Dates</h1>
<h2>The setMonth() Method</h2>
<p>setMonth() sets the month (and day) of a date object:</p>
<p id="demo"></p>
<script>
const d = new Date("2025-01-15");
d.setMonth(4, 20);
document.getElementById("demo").innerHTML = d;
</script>
</body>
</html>