#30532 [NEW]: strtotime - crossing daylight savings time

From: rbro at hotmail dot com Operating system: Linux PHP version: 4.3.9 PHP Bug Type: Date/time related Bug description: strtotime - crossing daylight savings time Description: ------------ In the US, Daylight Savings Time ends on October 31, 2004 at 2am where clocks are then reset back to 1am. I am in the Eastern time zone. If I run the following script where I'm adding 1 hour, 2 hours, and 3 hours to the date 2004-10-31, I'm getting different results from including EDT in the date or not, when I thought that strtotime() defaults to the local timezone. Reproduce code: --------------- <?php echo date('Y-m-d H:i:s', strtotime('2004-10-31 EDT +1 hour'))."\n"; echo date('Y-m-d H:i:s', strtotime('2004-10-31 EDT +2 hours'))."\n"; echo date('Y-m-d H:i:s', strtotime('2004-10-31 EDT +3 hours'))."\n"; echo "\n"; echo date('Y-m-d H:i:s', strtotime('2004-10-31 +1 hour'))."\n"; echo date('Y-m-d H:i:s', strtotime('2004-10-31 +2 hours'))."\n"; echo date('Y-m-d H:i:s', strtotime('2004-10-31 +3 hours'))."\n"; ?> Expected result: ---------------- 2004-10-31 01:00:00 2004-10-31 01:00:00 2004-10-31 02:00:00 2004-10-31 01:00:00 2004-10-31 01:00:00 2004-10-31 02:00:00 Actual result: -------------- 2004-10-31 01:00:00 2004-10-31 01:00:00 2004-10-31 02:00:00 2004-10-31 01:00:00 2004-10-31 02:00:00 2004-10-31 03:00:00 -- Edit bug report at http://bugs.php.net/?id=30532&edit=1 -- Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=30532&r=trysnapshot4 Try a CVS snapshot (php5.0): http://bugs.php.net/fix.php?id=30532&r=trysnapshot50 Try a CVS snapshot (php5.1): http://bugs.php.net/fix.php?id=30532&r=trysnapshot51 Fixed in CVS: http://bugs.php.net/fix.php?id=30532&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=30532&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=30532&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=30532&r=needscript Try newer version: http://bugs.php.net/fix.php?id=30532&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=30532&r=support Expected behavior: http://bugs.php.net/fix.php?id=30532&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=30532&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=30532&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=30532&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=30532&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=30532&r=dst IIS Stability: http://bugs.php.net/fix.php?id=30532&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=30532&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=30532&r=float MySQL Configuration Error: http://bugs.php.net/fix.php?id=30532&r=mysqlcfg