What potential pitfalls should be considered when converting timestamps in PHP?

When converting timestamps in PHP, potential pitfalls to consider include ensuring the correct timezone is set to avoid discrepancies, handling daylight saving time changes appropriately, and being aware of the limitations of the timestamp data type in PHP which may cause overflow issues for dates outside the supported range. 

// Set the timezone to avoid discrepancies
date_default_timezone_set('America/New_York');

// Convert timestamp to a specific format
$timestamp = 1609459200; // January 1, 2021
$date = date('Y-m-d H:i:s', $timestamp);

echo $date;

Keywords

timezone strtotime date_default_timezone_set DateTime daylight saving time

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