Newsgroups: php.internals
Path: news.php.net
Xref: news.php.net php.internals:89265
Mailing-List: contact internals-help@lists.php.net; run by ezmlm
Received-SPF: pass (pb1.pair.com: domain gmail.com designates 209.85.217.173 as permitted sender)
MIME-Version: 1.0
In-Reply-To: <alpine.DEB.2.20.1511171120220.4687@whisky.home.derickrethans.nl>
References: <CAEp07h-fQ_MngOB-kbD9LAN3GCBKszAZ4ttK9MqwjT+WQ-1q1Q@mail.gmail.com>
	<alpine.DEB.2.20.1511171120220.4687@whisky.home.derickrethans.nl>
Date: Tue, 17 Nov 2015 12:35:52 +0100
Message-ID: <CAEp07h-Up1e0iTd8zyjM4=9MVCMnV2aGwXoG85wFhnAKyteN8w@mail.gmail.com>
To: Derick Rethans <derick@php.net>
Cc: PHP internals <internals@lists.php.net>
Content-Type: multipart/alternative; boundary=001a11c3d3e29b2dd60524baeda2
Subject: Re: [PHP-DEV] DateTime / Timezone funny behaviour, between different version
From: martin.keckeis1@gmail.com (Martin Keckeis)

--001a11c3d3e29b2dd60524baeda2
Content-Type: text/plain; charset=UTF-8

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 :-)

--001a11c3d3e29b2dd60524baeda2--