Bug #73120 [Opn->Fbk]: Wrong calculation

Edit report at https://bugs.php.net/bug.php?id=73120&edit=1 ID: 73120 Updated by: derick@php.net Reported by: carletto90 at gmail dot com Summary: Wrong calculation -Status: Open +Status: Feedback Type: Bug Package: Date/time related Operating System: Windows 10 PHP Version: 7.0.11 Block user comment: N Private report: N New Comment: Not enough information was provided for us to be able to handle this bug. Please re-read the instructions at http://bugs.php.net/how-to-report.php If you can provide more information, feel free to add it to this bug and change the status back to "Open". Thank you for your interest in PHP. I can't reproduce this: derick@whisky:~/dev/timelib $ php <?php $date = new \DateTime('2016-03-01'); $date2 = new \DateTime('2016-03-31'); $diff = $date->diff($date2); echo 'Years: '.$diff->y."\n"; echo 'Months: '.$diff->m."\n"; echo 'Days: '.$diff->d."\n"; ?> Years: 0 Months: 0 Days: 30 Which timezone have you configured? Previous Comments: ------------------------------------------------------------------------ [2016-11-25 19:31:47] jhdxr@php.net the current result is strange, but why the correct result is 1 month? 2016-03-31 - 2016-03-01 ==> 30 days 2016-04-01 - 2016-03-01 ==> 1 month I think this is the correct calculation. ------------------------------------------------------------------------ [2016-09-20 08:25:18] carletto90 at gmail dot com Description: ------------ --- From manual page: http://www.php.net/datetime.diff --- Test script: --------------- <?php $date = new \DateTime('2016-03-01'); $date2 = new \DateTime('2016-03-31'); $diff = $date->diff($date2); echo 'Years: '.$diff->y."\n"; echo 'Months: '.$diff->m."\n"; echo 'Days: '.$diff->d."\n"; ?> Expected result: ---------------- Years: 0 Months: 1 Days: 0 Actual result: -------------- Years: 0 Months: 1 Days: 1 ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=73120&edit=1