Bug #81267 [NEW]: Instantiating DateTime with unix timestamps does not set UTC as Timezone

From: heiglandreas Operating system: 3v4l.org PHP version: 8.0.8 Package: Date/time related Bug Type: Bug Bug description:Instantiating DateTime with unix timestamps does not set UTC as Timezone Description: ------------ Currently creating a new DateTime(Immutable) Object using a timestamp does set the timezone as +00:00 (Type 1). Expected outcome would be to have the timestamp be set to UTC (type 3). Why? According to https://en.wikipedia.org/wiki/Unix_time the unix timestamp is always thought to be a representation of a DateTime in UTC. Having the timezone set to a simple offset does not reflect that. Even though the Unix timestamp has its own way of handling leap seconds and even though there are thoughts on coupling the unix timestamp to a (not yet generally used) "International time" (which would be UTC without leap seconds) the timestamp is generally considered to be a UTC representation, not just of offset +00:00. See : * https://en.wikipedia.org/wiki/Unix_time * https://3v4l.org/f7bBe Test script: --------------- <?php $f = new DateTimeImmutable('@1234567'); var_dump($f->getTimezone()); Expected result: ---------------- object(DateTimeZone)#2 (2) { ["timezone_type"]=> int(3) ["timezone"]=> string(3) "UTC" } Actual result: -------------- object(DateTimeZone)#2 (2) { ["timezone_type"]=> int(1) ["timezone"]=> string(6) "+00:00" } -- Edit bug report at https://bugs.php.net/bug.php?id=81267&edit=1 -- Fix committed: https://bugs.php.net/fix.php?id=81267&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=81267&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=81267&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=81267&r=needscript Try newer version: https://bugs.php.net/fix.php?id=81267&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=81267&r=support Expected behavior: https://bugs.php.net/fix.php?id=81267&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=81267&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=81267&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=81267&r=globals PHP version support discontinued: https://bugs.php.net/fix.php?id=81267&r=phptooold Daylight Savings: https://bugs.php.net/fix.php?id=81267&r=dst IIS Stability: https://bugs.php.net/fix.php?id=81267&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=81267&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=81267&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=81267&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=81267&r=mysqlcfg