Description:
------------
This error only came about in April.  I've had it on my intranet for about a year now..  and all of a sudden I have two April 3rds on my Time Clock and it's consistent on matter what year it's on.  I cleared it up by just adding an hour to the mktime() to force it further into the day.

This is a very normal setup of PHP.  It's the stable release of 4.3.5 and it's running IIS 5 as cgi per the auto installer

The only changes in the php.ini is my doc_root to a separate drive and my extensions directory to c:\PHP.

This also did it on my home computer running 4.3.5 as a module on Apache 1.3.29 on Windows XP.

Reproduce code:
---------------
//Bad Code
for($i=1; $i<31; $i++) {
	$timestamp = mktime(0,0,0,4,$i,2004);
        echo date("F j", $timestamp)." - ".$timestamp."<br>";
}

//Jimmy Rigged Code - **Added 1 hour**
for($i=1; $i<31; $i++) {
	$timestamp = mktime(1,0,0,4,$i,2004);
        echo date("F j", $timestamp)." - ".$timestamp."<br>";
}

Expected result:
----------------
April 1 - 1080802800
April 2 - 1080889200
April 3 - 1080975600
April 4 - 1081058400
April 5 - 1081144800
April 6 - 1081231200
.
.
etc

Actual result:
--------------
April 1 - 1080799200
April 2 - 1080885600
April 3 - 1080972000
April 3 - 1081054800
April 5 - 1081141200
April 6 - 1081227600
.
.
etc