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Bug #73909 Instanbul local time is incorrect
Submitted: 2017-01-10 18:09 UTC Modified: 2017-01-11 14:21 UTC
Votes:1
Avg. Score:3.0 ± 0.0
Reproduced:0 of 1 (0.0%)
From: pgabardo at graphiq dot com Assigned:
Status: Not a bug Package: Date/time related
PHP Version: 7.1.0 OS: MacOS
Private report: No CVE-ID: None
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From: pgabardo at graphiq dot com
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 [2017-01-10 18:09 UTC] pgabardo at graphiq dot com 
Description:
------------
I have a function to compute the local time (relative to California) of any given timezone (in AREA/REGION format) which uses date_default_timezone_set(). The result for 'Europe/Istanbul' is one hour behind the actual local time.

Test script:
---------------
date_default_timezone_set('Europe/Istanbul');
echo date("Y-m-d\TH:i:s");

Expected result:
----------------
2017-01-10T21:07:24+02:00

Actual result:
--------------
2017-01-10T20:07:24+02:00

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 [2017-01-11 12:54 UTC] contact at frank-liepert dot de 
This shouldn't be a problem with PHP itself but an outdated timezonedb. Turkey switched to permanent +03:00. See also http://mm.icann.org/pipermail/tz-announce/2016-September/000041.html
 [2017-01-11 14:21 UTC] heiglandreas@php.net
-Status: Open +Status: Not a bug
 [2017-01-11 14:21 UTC] heiglandreas@php.net 
The code you provided would print out the date without the offset. 

And as already explained that sounds more like an issue of an outdated timezoneDB.
 
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