Bug #70335 [NEW]: DateTime doesn't take into account leap seconsa

From: teo8976 at gmail dot com Operating system: PHP version: 7.0.0RC1 Package: Date/time related Bug Type: Bug Bug description:DateTime doesn't take into account leap seconsa Description: ------------ https://en.wikipedia.org/wiki/Leap_second#Insertion_of_leap_seconds Test script: --------------- https://3v4l.org/DL88F <?php $date=date_create("Jun 30 2015 23:59:59", new DateTimeZone("UTC")); print_r($date); print_r($date->getTimeStamp()); echo "\n"; $date= $date->add(new DateInterval("PT1S")); print_r($date); print_r($date->getTimeStamp()); $date2=date_create("now", new DateTimeZone("UTC")); $date2->setTimeStamp("1435708799"); print_r($date2); $date2->setTimeStamp("1435708801"); print_r($date2); Expected result: ---------------- Adding one second to jun 30 2015 23:59:59 UTC should yield jun 30 2015 23:59:60 UTC because of the leap second. Same for 2012 (and a few more years). If the timestamp 1435708799 corresponds to jun 30 2015 23:59:59, which it shouldn't because it is calculated without taking into account the 25 leap seconds occurred since the beginning of the Unix Epoch until that date, but if it was, then 1435708800 should correspond to jun 30 2015 23:59:60 and 1435708801 should be jul 1 2015 00:00:00 Actual result: -------------- Leap seconds are not taken into account, as if they didn't exist. No 23:59:60 time exists for the days where it should, and the conversion between timestamps and UTC is therefore offset of a few seconds depending on the date, up to 26 seconds today. -- Edit bug report at https://bugs.php.net/bug.php?id=70335&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=70335&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=70335&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=70335&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=70335&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=70335&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=70335&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=70335&r=needscript Try newer version: https://bugs.php.net/fix.php?id=70335&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=70335&r=support Expected behavior: https://bugs.php.net/fix.php?id=70335&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=70335&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=70335&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=70335&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=70335&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=70335&r=dst IIS Stability: https://bugs.php.net/fix.php?id=70335&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=70335&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=70335&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=70335&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=70335&r=mysqlcfg