php.net |  support |  documentation |  report a bug |  advanced search |  search howto |  statistics |  random bug |  login

go to bug id or search bugs for

Bug #42486 strtotime() fails with UT timezone
Submitted: 2007-08-30 12:37 UTC Modified: 2007-08-30 13:14 UTC
Votes:6
Avg. Score:3.8 ± 0.9
Reproduced:5 of 5 (100.0%)
Same Version:1 (20.0%)
Same OS:1 (20.0%)
From: up at co dot inbox dot lv Assigned:
Status: Wont fix Package: Unknown/Other Function
PHP Version: 5.2.4RC3 OS: Gentoo Linux
Private report: No CVE-ID: None
View Developer Edit
Anyone can comment on a bug. Have a simpler test case? Does it work for you on a different platform? Let us know!
Just going to say 'Me too!'? Don't clutter the database with that please !
Your email address:
MUST BE VALID
Solve the problem:
15 - 8 = ?
Subscribe to this entry?

 
 [2007-08-30 12:37 UTC] up at co dot inbox dot lv 
Description:
------------
strtotime() returns false if timezone is set to UT, it worked in php4 but is broken in php5

Reproduce code:
---------------
<?php print strtotime('Tue, 21 Aug 2007 06:23:46 UT'); ?>

Expected result:
----------------
On PHP Version 4.4.1:
1187677426

Actual result:
--------------
Empty

Patches

Pull Requests

History

AllCommentsChangesGit/SVN commitsRelated reports
 [2007-08-30 12:49 UTC] derick@php.net 
UT is not really a easy measurable timezone, unlike UTC. To support this correctly we should take care of leapseconds, and this is very much something you don't want to do. See http://en.wikipedia.org/wiki/DUT1 for what is different between UTC and UT.
 [2007-08-30 13:14 UTC] up at co dot inbox dot lv 
Ok, I believe the user, that have sent me an email message with the "Tue, 21 Aug 2007 06:23:46 UT" in the Date: header not mentioned this "Earth Rotation" timezone :D I suspect there's a bug in some mailing software, kind of missing "C" char after "UT".

From the link that you provided I see that difference between UT1 &#8722; UTC is allways less than one second, but strtotime() returns result exactly in seconds, not so precise. So by replacing "UT" string by "UTC" before parsing the date, we should get exactly the same time. I think this is more a documentation issue, but users will never meet this bug again.
 [2023-10-22 15:06 UTC] hanskrentel at yahoo dot de 
Related To: Bug #44909
 [2023-10-22 15:06 UTC] hanskrentel at yahoo dot de 
Related To: Bug #44909
 
PHP Copyright © 2001-2025 The PHP Group
All rights reserved. 		Last updated: Sat Nov 08 12:00:02 2025 UTC