How can PHP developers ensure accurate time calculations when dealing with time zones and server differences in web applications?

When dealing with time zones and server differences in web applications, PHP developers can ensure accurate time calculations by using the DateTime class and setting the appropriate time zone. This allows developers to work with time in a standardized manner, regardless of the server's time configuration. 

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

// Create a new DateTime object with the appropriate time zone
$date = new DateTime('now', new DateTimeZone('America/New_York'));

// Perform time calculations with the DateTime object
$date->modify('+1 day');
echo $date->format('Y-m-d H:i:s');

Keywords

DateTime timezone date_default_timezone_set strtotime daylight saving time

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