What are the best practices for integrating JavaScript functions with PHP scripts for time-related tasks?

When integrating JavaScript functions with PHP scripts for time-related tasks, it is important to ensure that both languages are synchronized in terms of time calculations. One way to achieve this is by using the PHP `date()` function to pass the current timestamp to JavaScript for further processing. This ensures that both languages are working with the same time reference and can accurately perform time-related tasks.

<?php
$current_timestamp = time();
?>

<script>
var current_timestamp = <?php echo $current_timestamp; ?>;
// Use current_timestamp in JavaScript for time-related tasks
</script>