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Doc Bug #71689 IntlDateFormatter uses system timezone instead of default
Submitted: 2016-02-29 13:56 UTC Modified: 2021-11-11 11:17 UTC
From: dcrystal dot source at gmail dot com Assigned:
Status: Open Package: I18N and L10N related
PHP Version: Irrelevant OS: Linux
Private report: No CVE-ID: None
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 [2016-02-29 13:56 UTC] dcrystal dot source at gmail dot com
As per documentation (, the default timezone (and the one used if NULL is given) is the one returned by date_default_timezone_get(). 

This is not the case however with IntlDateFormatter and PHP 5.4/5.3 - which seems to use system timezone instead of date_default_timezone_get().

PHP Version: PHP 5.4.16 / PHP 5.3.3
System timezone: GMT

Even though 5.3 and 5.4 are EOL - they are still widely used. Could this be at least explicitly stated in documentation (changelog section probably) ?

Test script:
$dateFormatter = new IntlDateFormatter('en_US', IntlDateFormatter::NONE, IntlDateFormatter::NONE);
$parsed = $dateFormatter->parse("02/29/16");

var_dump(date("Y-m-d H:i:s", $parsed));

Expected result:
"2016-02-29 00:00:00"

Actual result:
"2016-02-28 19:00:00"


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 [2021-11-11 11:17 UTC]
-Package: intl +Package: I18N and L10N related
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