From: Operating system: Ubuntu Linux 10.04 PHP version: 5.3.3 Package: *Calendar problems Bug Type: Bug Bug description:Europe/London is in two timezones
Description: ------------ I was about to create a timezone selector widget with map and select box with the timezone IDs, but when I asked for the full timezone list with DateTimeZone::listAbbreviations() I saw that Europe/London is in two different timezones according to the Greenwich Mean Time: - "bdst": DST is TRUE, offset is GMT+2 hours (== DST:false and GMT+1) - "bst": offset is GMT+1 hour and DST doesn't matter, both TRUE (== GMT+0) and FALSE (== GMT+1) can be found - "gmt": DST is FALSE, offset is GMT+0. It is GMT of course :) How can this be possible? Test script: --------------- <?php $dtz = DateTimeZone::listAbbreviations(); die('<pre>'.print_r($dtz, true).'</pre>'); // and search for 'Europe/London' or see description below Expected result: ---------------- GMT+1 in Summer and GMT+0 otherwise. Something like: ["bst"] => array(25) { [0] => array(3) { ["dst"] => bool(true) ["offset"] => int(3600) ["timezone_id"] => string(13) "Europe/London" } ... } ... ["gmt"] => array(30) { ... [26] => array(3) { ["dst"] => bool(false) ["offset"] => int(0) ["timezone_id"] => string(13) "Europe/London" } ... } Actual result: -------------- ... ["bdst"] => array(8) { [0] => array(3) { ["dst"] => bool(true) ["offset"] => int(7200) ["timezone_id"] => string(13) "Europe/London" } ... } ... ["bst"] => array(25) { [0] => array(3) { ["dst"] => bool(false) ["offset"] => int(3600) ["timezone_id"] => string(13) "Europe/London" } [1] => array(3) { ["dst"] => bool(true) ["offset"] => int(3600) ["timezone_id"] => string(13) "Europe/London" } ... } ... ["gmt"] => array(30) { ... [26] => array(3) { ["dst"] => bool(false) ["offset"] => int(0) ["timezone_id"] => string(13) "Europe/London" } ... } ... -- Edit bug report at http://bugs.php.net/bug.php?id=53078&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=53078&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=53078&r=trysnapshot53 Try a snapshot (trunk): http://bugs.php.net/fix.php?id=53078&r=trysnapshottrunk Fixed in SVN: http://bugs.php.net/fix.php?id=53078&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=53078&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=53078&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=53078&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=53078&r=needscript Try newer version: http://bugs.php.net/fix.php?id=53078&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=53078&r=support Expected behavior: http://bugs.php.net/fix.php?id=53078&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=53078&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=53078&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=53078&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=53078&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=53078&r=dst IIS Stability: http://bugs.php.net/fix.php?id=53078&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=53078&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=53078&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=53078&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=53078&r=mysqlcfg