What are some best practices for handling date and timestamp conversions in PHP code?

Handling date and timestamp conversions in PHP code can be tricky due to different formats and time zones. To ensure accurate conversions, it is best practice to always specify the time zone when working with dates and timestamps. Additionally, using PHP's built-in date and time functions can simplify the conversion process.

// Example of converting a date to a different format and time zone
$date = '2022-01-01 12:00:00';
$originalTimeZone = new DateTimeZone('UTC');
$newTimeZone = new DateTimeZone('America/New_York');

$dateTime = new DateTime($date, $originalTimeZone);
$dateTime->setTimezone($newTimeZone);

echo $dateTime->format('Y-m-d H:i:s');