Re: DateTime / Timezone funny behaviour, between different version

Hello, 2015-11-17 12:23 GMT+01:00 Derick Rethans <derick@php.net>: > On Tue, 17 Nov 2015, Martin Keckeis wrote: > > > Hello together, > > > > i just noticed that the date + timezone switching changed a lot last > time? > > > > tl;dr https://3v4l.org/pSplY > > > > When taking a old datetime: > > $date = \DateTime::createFromFormat('d.m.Y H:i:s', '01.01.1900 00 > :00:00', > > new \DateTimeZone('Europe/Berlin')); > > > > and switching between the given timezone and UTC, the date is sometimes > > corrected with some minutes+seconds and sometimes not. > > Berlin had some interesting timezone rules: > > Europe/Berlin Fri Mar 31 23:06:31 1893 UT = Fri Mar 31 23:59:59 1893 LMT > isdst=0 gmtoff=3208 > Europe/Berlin Fri Mar 31 23:06:32 1893 UT = Sat Apr 1 00:06:32 1893 CET > isdst=0 gmtoff=3600 > Europe/Berlin Sun Apr 30 21:59:59 1916 UT = Sun Apr 30 22:59:59 1916 CET > isdst=0 gmtoff=3600 > Europe/Berlin Sun Apr 30 22:00:00 1916 UT = Mon May 1 00:00:00 1916 CEST > isdst=1 gmtoff=7200 > > But there was a bug in PHP where we'd ignore the first block, and hence > picked a UTC offset of gmtoff=3208 for 1900-01-01, which was wrong. > That's now fixed again. > > cheers, > Derick > > -- > http://derickrethans.nl | > http://xdebug.org > Like Xdebug? Consider a donation: http://xdebug.org/donate.php > twitter: @derickr and @xdebug > Posted with an email client that doesn't mangle email: alpine > Hui... then i run into a really rare failure, thank you :-)