#44264 [Bgs]: On some dates timezone goes wrong

ID: 44264 User updated by: kungla at gmail dot com -Summary: OSX has same issues and some more examples Reported By: kungla at gmail dot com Status: Bogus Bug Type: Date/time related Operating System: Win XP SP2 AND OSX Leopard PHP Version: 5.2.5 New Comment: I found an workaround (I am creating dates from ISO_8601 ), but bug is still there!!! I see that tatus is still Bogus? Previous Comments: ------------------------------------------------------------------------ [2008-02-27 21:34:03] kungla at gmail dot com No I tested this on OSX leopard - same issue. I did some more examples. Reproduce code: --------------- <?php date_default_timezone_set('Europe/Tallinn'); $date1 = new DateTime('02.01.1980', new DateTimeZone('Europe/Tallinn')); $date2 = new DateTime('02.01.1990', new DateTimeZone('Europe/Tallinn')); echo 'Date1<br/>'; echo $date1->format('c'). ' ' . $date1->getTimezone()->getName(); echo '<br/><br/>'; echo 'Date2<br/>'; echo $date2->format('c'). ' ' . $date2->getTimezone()->getName(); echo '<br/><br/>'; echo "date('c', strtotime('02.01.1980'))<br/>"; echo date('c', strtotime('02.01.1980')); echo '<br/><br/>'; $date3 = new DateTime('-38 years', new DateTimeZone('Europe/Tallinn')); echo 'Date3<br/>'; echo $date3->format('c'). ' ' . $date3->getTimezone()->getName(); echo '<br/><br/>'; date_default_timezone_set('GMT'); echo "date('c', strtotime('02.01.1980')) with date_default_timezone_set('GMT') and working<br/>"; echo date('c', strtotime('02.01.1980')); ?> Expected result: ---------------- Date1 1980-01-02T00:00:00+02:00 Europe/Tallinn Date2 1990-01-02T00:00:00+02:00 Europe/Tallinn date('c', strtotime('02.01.1980')) 1980-01-02T00:00:00+02:00 Date3 1970-02-27T23:28:00+02:00 Europe/Tallinn date('c', strtotime('02.01.1980')) with date_default_timezone_set('GMT') and working 1980-01-02T00:00:00+00:00 Actual result: -------------- Date1 1980-01-02T00:00:00+03:00 Europe/Tallinn Date2 1990-01-02T00:00:00+02:00 Europe/Tallinn date('c', strtotime('02.01.1980')) 1980-01-02T00:00:00+03:00 Date3 1970-02-27T23:28:00+03:00 Europe/Tallinn date('c', strtotime('02.01.1980')) with date_default_timezone_set('GMT') and working 1980-01-02T00:00:00+00:00 ------------------------------------------------------------------------ [2008-02-27 13:56:58] derick@php.net The returned data is perfectly correct. From 1944 until 1981 Tallinn used Moscow time with Daylight Savings Time. Europe/Tallinn Thu Sep 21 22:00:00 1944 UTC = Fri Sep 22 01:00:00 1944 MSK isdst=0 gmtoff=10800 Europe/Tallinn Tue Mar 31 20:59:59 1981 UTC = Tue Mar 31 23:59:59 1981 MSK isdst=0 gmtoff=10800 From 1981 to 1989 moscow timw with DST: Europe/Tallinn Tue Mar 31 20:59:59 1981 UTC = Tue Mar 31 23:59:59 1981 MSK isdst=0 gmtoff=10800 Europe/Tallinn Tue Mar 31 21:00:00 1981 UTC = Wed Apr 1 01:00:00 1981 MSD isdst=1 gmtoff=14400 Europe/Tallinn Wed Sep 30 19:59:59 1981 UTC = Wed Sep 30 23:59:59 1981 MSD isdst=1 gmtoff=14400 Europe/Tallinn Wed Sep 30 20:00:00 1981 UTC = Wed Sep 30 23:00:00 1981 MSK isdst=0 gmtoff=10800 ... ... Europe/Tallinn Sat Sep 24 23:00:00 1988 UTC = Sun Sep 25 02:00:00 1988 MSK isdst=0 gmtoff=10800 Europe/Tallinn Sat Mar 25 22:59:59 1989 UTC = Sun Mar 26 01:59:59 1989 MSK isdst=0 gmtoff=10800 From 1989 until now, Estonia switched to the non-russian zone with DST: Europe/Tallinn Sat Mar 25 23:00:00 1989 UTC = Sun Mar 26 02:00:00 1989 EEST isdst=1 gmtoff=10800 Europe/Tallinn Sat Sep 23 23:59:59 1989 UTC = Sun Sep 24 02:59:59 1989 EEST isdst=1 gmtoff=10800 Europe/Tallinn Sun Sep 24 00:00:00 1989 UTC = Sun Sep 24 02:00:00 1989 EET isdst=0 gmtoff=7200 Europe/Tallinn Sat Mar 24 23:59:59 1990 UTC = Sun Mar 25 01:59:59 1990 EET isdst=0 gmtoff=7200 Europe/Tallinn Sun Mar 25 00:00:00 1990 UTC = Sun Mar 25 03:00:00 1990 EEST isdst=1 gmtoff=10800 ... ... Europe/Tallinn Sun Mar 30 00:59:59 2008 UTC = Sun Mar 30 02:59:59 2008 EET isdst=0 gmtoff=7200 Europe/Tallinn Sun Mar 30 01:00:00 2008 UTC = Sun Mar 30 04:00:00 2008 EEST isdst=1 gmtoff=10800 Europe/Tallinn Sun Oct 26 00:59:59 2008 UTC = Sun Oct 26 03:59:59 2008 EEST isdst=1 gmtoff=10800 Europe/Tallinn Sun Oct 26 01:00:00 2008 UTC = Sun Oct 26 03:00:00 2008 EET isdst=0 gmtoff=7200 If you are 100% sure that this data is incorrect, and you can back that up with proof, let me know. ------------------------------------------------------------------------ [2008-02-27 13:46:43] kungla at gmail dot com Sorry class is DateTime not Time. Same issue with date('c', giventime) ------------------------------------------------------------------------ [2008-02-27 13:42:43] kungla at gmail dot com Description: ------------ On some dates timezone goes wrong. Big problem for me - can't go on whith my work!!! Reproduce code: --------------- $date1 = new Date('02.01.1980', new DateTimeZone('Europe/Tallinn')); $date2 = new Date('02.01.1990', new DateTimeZone('Europe/Tallinn')); echo $date1->format('c'). ' ' . $date2->format('c'); Expected result: ---------------- 1980-01-02T00:00:00+02:00 1990-01-02T00:00:00+02:00 Actual result: -------------- 1980-01-02T00:00:00+03:00 1990-01-02T00:00:00+02:00 ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=44264&edit=1