Strange behavior with PHP 8.1 DateTime in Timezone conversion during DST
I'm attempting to set up I'm experiencing an unexpected behavior when converting DateTime objects between timezones in PHP 8.1, particularly with daylight saving time (DST) changes. I have a scenario where I create a DateTime object in UTC and then convert it to a specific timezone. However, for certain dates around the DST changes, the resulting time appears to be inconsistent. Here’s the relevant code snippet: ```php $date = new DateTime('2023-03-12 12:00:00', new DateTimeZone('UTC')); $date->setTimezone(new DateTimeZone('America/New_York')); echo $date->format('Y-m-d H:i:s'); // Expected output should be 2023-03-12 08:00:00 ``` However, when I run this code on my server, I get the output `2023-03-12 09:00:00`, which is one hour off. I checked the server's timezone settings and ensured that the `date.timezone` directive in `php.ini` is set correctly to `America/New_York`. I’ve also tried using different dates, including both the start and end of DST in 2023, and I consistently get incorrect results. Here’s the PHP version I’m using: ```bash PHP 8.1.0 (cli) (built: Nov 23 2021 20:27:16) ( NTS ) ``` Is there something I’m overlooking in how PHP handles timezone conversions, or could this be a bug in this specific version? Any insights or workarounds would be greatly appreciated! For reference, this is a production REST API. Thanks, I really appreciate it!