Bug #19914 [Com]: October 27 2002 spans 90000 seconds. 1:00AM - 1:59AM are not unique times.

Edit report at https://bugs.php.net/bug.php?id=19914&edit=1 ID: 19914 Comment by: beakerboy99 at yahoo dot com Reported by: jsb17 at NOSPAMcornell dot edu Summary: October 27 2002 spans 90000 seconds. 1:00AM - 1:59AM are not unique times. Status: Bogus Type: Bug Package: Date/time related Operating System: Windows 98 PHP Version: 4.2.3 Block user comment: N Private report: N New Comment: I had found a similar "bug" with 2007-11-04 after pulling my hair out trying to find whay a URL link wasn't incrementing properly. I found the 90000 seconds thing, and then figured out it's due to daylight savings time and the extra hour from setting the clocks back. Previous Comments: ------------------------------------------------------------------------ [2002-10-15 03:28:34] derick@php.net We are happy to tell you that you just discovered Daylight Savings Time. For more information see: http://webexhibits.org/daylightsaving/b.html ------------------------------------------------------------------------ [2002-10-15 03:26:29] jsb17 at NOSPAMcornell dot edu To whom it may concern, I noticed you have another October date bug pending, but it was in spanish, and I don't understand it. I believe this is a bug: October 27, 2002 spans 90000 seconds, rather than 86400. Please let me know if I am incorrect. I have isolated the bug on a page on my server: http://68.50.50.189/wp_test_stuff/bug.php "01:00 am 27 Oct 2002" appears twice in the list. Here is the code used to produce this page: <?php // timestamps are 90000 seconds apart $debug_seven = mktime(0,0,0,10,27,2002); echo "10-27-2002 timestamp: $debug_seven<br>"; $debug_eight = mktime(0,0,0,10,28,2002); echo "10-28-2002 timestamp: $debug_eight<p>"; //begin on october 27, 2002, and increment every hour for ($ts=1035702000; $ts <= 1035792000; $ts+=3600){ echo "<br>" . date("h:i a d M Y", $ts); } echo "<P><HR><P>"; phpinfo(); echo "<hr>$HTTP_USER_AGENT\n"; ?> If this is a bug, I hope you are able to spend less time fixing it than I spent isolating it. I received the error using a loop to cycle through consecutive days by incrementing my timestamp += 86400. I have changed my code by using this time-expensive kludge, but it works: // increment to the next day $my_timestamp = mktime(0,0,0, date("m",$my_timestamp), date("d",$my_timestamp)+1, date("Y",$my_timestamp)); I hope I have been clear. Thank you for your time in considering this. Please remove the NOSPAM from my e-mail address when replying -Jon ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=19914&edit=1