Bug #81562 [Com]: DateTime returns incorrect time on a very specific date (1895-01-01)

Edit report at https://bugs.php.net/bug.php?id=81562&edit=1 ID: 81562 Comment by: sschueller at techdroid dot com Reported by: abrlam at yahoo dot com Summary: DateTime returns incorrect time on a very specific date (1895-01-01) Status: Verified Type: Bug Package: Date/time related Operating System: Ubuntu 18.04.4 LTS PHP Version: Irrelevant Block user comment: N Private report: N New Comment: Please ignore my previous comment. The timezone output seems correct for this region regarding historical events. Previous Comments: ------------------------------------------------------------------------ [2022-03-14 14:42:41] sschueller at techdroid dot com <?php for ($i = 0000; $i <= 2025; $i++) { $tz1 = new DateTime($i.'-01-01 00:00:00', new \DateTimeZone('Europe/Zurich')); echo $tz1->format('c') . "\n"; } Timezone is wrong between 0000-1895, .... 1782-01-01T00:00:00+00:34 1783-01-01T00:00:00+00:34 1784-01-01T00:00:00+00:34 1785-01-01T00:00:00+00:34 1786-01-01T00:00:00+00:34 1787-01-01T00:00:00+00:34 1788-01-01T00:00:00+00:34 .... 1889-01-01T00:00:00+00:29 1890-01-01T00:00:00+00:29 1891-01-01T00:00:00+00:29 1892-01-01T00:00:00+00:29 1893-01-01T00:00:00+00:29 1894-01-01T00:00:00+00:29 1895-01-01T00:00:00+01:00 1896-01-01T00:00:00+01:00 .... Using 'CET' instead works for all years starting from 0000. I can firm this issues in 7.4 and 8.1. ------------------------------------------------------------------------ [2021-11-12 15:46:13] antonino dot spampinato86 at gmail dot com Related To: Bug #81565 ------------------------------------------------------------------------ [2021-10-29 11:29:08] cmb@php.net Confirmed: <https://3v4l.org/NLAnOY>. This is apparently caused by the uncommon timezone transition on that particular date[1], where the minutes and seconds are not properly handled. [1] <https://3v4l.org/VEUib> ------------------------------------------------------------------------ [2021-10-28 18:32:33] abrlam at yahoo dot com Description: ------------ When time zone is set as America/Toronto, DateTime returns incorrect time on a very specific date (1895-01-01). This happens in PHP version 7.4.20 and possibly in earlier versions (>=7.3.5). Test script: --------------- //fails in 1895-01-01 for($i = 1890; $i <= 1910 ; $i++) { $date = new DateTime( $i. '-01-01', new DateTimeZone('America/Toronto')); echo $date->format('Y-m-d H:i:s') . "<br />"; } Expected result: ---------------- For 1895-01-01, it should be 1895-01-01 00:00:00 instead of 1895-01-01 00:17:32. Actual result: -------------- 1890-01-01 00:00:00 1891-01-01 00:00:00 1892-01-01 00:00:00 1893-01-01 00:00:00 1894-01-01 00:00:00 1895-01-01 00:17:32 <========== Expected value: 1895-01-01 00:00:00 1896-01-01 00:00:00 1897-01-01 00:00:00 1898-01-01 00:00:00 1899-01-01 00:00:00 1900-01-01 00:00:00 1901-01-01 00:00:00 1902-01-01 00:00:00 1903-01-01 00:00:00 1904-01-01 00:00:00 1905-01-01 00:00:00 1906-01-01 00:00:00 1907-01-01 00:00:00 1908-01-01 00:00:00 1909-01-01 00:00:00 1910-01-01 00:00:00 ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=81562&edit=1