What are the potential pitfalls of using PHP scripts to execute time-based actions?

One potential pitfall of using PHP scripts to execute time-based actions is that the server's time zone may not be set correctly, leading to inaccurate timing of the actions. To solve this issue, you can explicitly set the time zone in your PHP script using the `date_default_timezone_set()` function.

// Set the time zone to UTC
date_default_timezone_set('UTC');

// Your time-based action code here