What are some potential pitfalls to be aware of when using PHP to calculate and display different schedule variations?

One potential pitfall when using PHP to calculate and display different schedule variations is not properly handling time zones. It is important to ensure that all date and time calculations are done in the correct time zone to avoid discrepancies in the displayed schedule. 

// Set the default time zone to use in all date and time calculations
date_default_timezone_set('America/New_York');

// Example of calculating and displaying a schedule variation
$startTime = strtotime('10:00:00');
$endTime = strtotime('+2 hours', $startTime);

echo 'Schedule Variation: ' . date('H:i:s', $startTime) . ' - ' . date('H:i:s', $endTime);

Keywords

PHP schedule variations calculation errors display issues data validation

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