Bug #66485 [Asn->Dup]: 01.01.2014 diff 01.02.2014 is 30 days instead of 1 month

Edit report at https://bugs.php.net/bug.php?id=66485&edit=1 ID: 66485 Updated by: heiglandreas@php.net Reported by: kuba at pdesign dot pl Summary: 01.01.2014 diff 01.02.2014 is 30 days instead of 1 month -Status: Assigned +Status: Duplicate Type: Bug Package: Date/time related Operating System: Windows 7 PHP Version: 5.5.8 Assigned To: derick Block user comment: N Private report: N New Comment: This looks like a duplicate of https://bugs.php.net/bug.php?id=52480 Previous Comments: ------------------------------------------------------------------------ [2015-11-09 08:23:26] jimmy dot gaussen at gmail dot com Hi, I had the same issue on 5.6.10, on Linux and Winndows. I tried to do some research on it, here is the dead r/PHPHelp thread I opened: https://www.reddit.com/r/PHPhelp/comments/3r7so6/weird_datetimediff_interaction_with_time_zones/ ------------------------------------------------------------------------ [2014-01-14 12:44:58] kuba at pdesign dot pl Description: ------------ --- From manual page: http://www.php.net/datetime.diff --- see the actual result Test script: --------------- // date format DD-MM-YYYY $start = new DateTime('01-02-2014'); $stop = new DateTime('01-03-2014'); $diff = $start->diff($stop); echo $diff->format('%d days %m months'); Expected result: ---------------- 0 days 1 months Actual result: -------------- 28 days 0 months ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=66485&edit=1