Bug #74524 [Opn->Csd]: Date diff is bad calculated, in same time zone

Edit report at https://bugs.php.net/bug.php?id=74524&edit=1 ID: 74524 Updated by: derick@php.net Reported by: kalita dot michal at gmail dot com Summary: Date diff is bad calculated, in same time zone -Status: Open +Status: Closed Type: Bug Package: Date/time related Operating System: Linux PHP Version: 7.1.4 -Assigned To: +Assigned To: derick Block user comment: N Private report: N New Comment: The fix for this bug has been committed. If you are still experiencing this bug, try to check out latest source from https://github.com/php/php-src and re-test. Thank you for the report, and for helping us make PHP better. Fixed for PHP 8.1. Previous Comments: ------------------------------------------------------------------------ [2020-10-22 08:54:34] steve dot caillault at gmail dot com I a similar problem with the PHP version 7.4.7 : $currentDateString = '2020-10-21 22:22:59'; $targetDateString = '2020-10-25 21:30:00'; $timezone = new \DateTimeZone('Europe/Paris'); $currentDateTime = new \DateTime($currentDateString, $timezone); $targetDateTime = new \DateTime($targetDateString, $timezone); $dateInterval = $currentDateTime->diff($targetDateTime, TRUE); echo $dateInterval->h; $dateInterval->h value is -1, while the value should be 23. I have the problem on Windows and UNIX. ------------------------------------------------------------------------ [2017-12-01 16:46:19] miloslav dot hula at gmail dot com Hi, probably another example of bug: https://3v4l.org/S7rGP In the Europe/Prague timezone, there was a 1 hour switch back on 29th Oct 2017 from 03:00 to 02:00 (from CEST to CET). When run on 3v4l.org with EOL versions checked, you can notice that behaviour has been correct in 5.3.0-5.4.23, 5.5.0-5.5.7. In the PHP5 5.4.24 and 5.5.8 change log is fixed bug #66060 (https://bugs.php.net/bug.php?id=66060). ------------------------------------------------------------------------ [2017-10-30 11:26:08] onda204 at gmail dot com Hi, I detected the following issue that may have to do with present Bug. Using diff with dates that are on range of summer / winter time change, the function diff on element $interval->h gives result -1 Tested width date interval: 27-10-2017 15.00 H 29-10-2017 14.00 H Portuguese regional settings ------------------------------------------------------------------------ [2017-05-06 19:02:46] heiglandreas@php.net This is a DST issue as can be seen in https://3v4l.org/9AWOI The default Timezone of 3v4l.org is Europe/Amsterdam which has DST and therefore has the issue! ------------------------------------------------------------------------ [2017-05-03 07:18:55] andrew dot nester dot dev at gmail dot com Just added reworked pull request to this issue. Here is the link https://github.com/php/php-src/pull/2506 ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at https://bugs.php.net/bug.php?id=74524 -- Edit this bug report at https://bugs.php.net/bug.php?id=74524&edit=1