#27533 [Csd]: gmmktime can return wrong value on the night that DST comes into affect
| From: | derick@php.net | Date: | Wed, 07 Apr 2004 15:00:58 +0000 |
| Subject: | #27533 [Csd]: gmmktime can return wrong value on the night that DST comes into affect | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-57715@lists.php.net to get a copy of this message | ||
ID: 27533
Updated by: derick@php.net
Reported By: scottmacvicar at ntlworld dot com
Status: Closed
Bug Type: Date/time related
Operating System: *
PHP Version: 4CVS, 5CVS (2004-03-11)
New Comment:
Please answer all questions, and additionally: which glibc do you have?
Previous Comments:
------------------------------------------------------------------------
[2004-04-07 09:38:22] peter at rukavina dot net
RedHat Enterprise Linux 3
Kernel 2.4.21-9.0.1.EL
PHP 4.3.5
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[2004-04-07 03:09:09] derick@php.net
It works fine for me, what operating system is this on? And in what
timezone are you?
regards,
Derick
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[2004-04-06 17:28:05] peter at rukavina dot net
The patch doesn't seem to have solved the problem. Or perhaps it's
introduced a new one? Here's a simnple test case that calculates the
GMT timestamp using gmmktime, then echos it back using gmstrftime,
which should return the SAME time:
for ($day = 2 ; $day <= 6 ; $day++) {
$datestamp = gmmktime(1,15,0,4,$day,2004);
print gmstrftime("%Y-%m-%d %H:%M",$datestamp) . "\n";
}
Expected Result:
2004-04-02 01:15
2004-04-03 01:15
2004-04-04 01:15
2004-04-05 01:15
2004-04-06 01:15
Actual Result:
2004-04-02 01:15
2004-04-03 01:15
2004-04-04 03:15
2004-04-05 01:15
2004-04-06 01:15
This only occurs when the datestamp is between 1:00 a.m. and 1:59 a.m.
GMT on the day where DST takes effect.
------------------------------------------------------------------------
[2004-03-12 12:23:31] rasmus@php.net
This bug has been fixed in CVS.
Snapshots of the sources are packaged every three hours; this change
will be in the next snapshot. You can grab the snapshot at
http://snaps.php.net/.
Thank you for the report, and for helping us make PHP better.
------------------------------------------------------------------------
[2004-03-12 12:10:16] rasmus@php.net
On my Linux box with TZ set to GMT I get:
1080259200 - 26
1080345600 - 27
1080432000 - 28
1080518400 - 29
which appears to me to be correct. But if this patch works around the
bug on Windows then I don't see any problem with it. I don't see how
it could negatively impact other platforms.
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the rest of the comments, please view the bug report online at
http://bugs.php.net/27533
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