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<!DOCTYPE html> <html> <body> <p>Click the button to display a time-based greeting:</p> <button type="Button" onclick="myFunction()">Try it</button> <p id="demo"></p> <script> function myFunction() { var hour = new Date().getHours(); var greeting; if (hour < 18) { greeting = "Good day"; } else { greeting = "Good evening"; } document.getElementById("demo").innerHTML = greeting; } </script> </body> </html>
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