I've tried the following

$http_date = time2str( str2time("$timestamp", "-0600") );
[download]

and...

$http_date = time2str($timestamp);
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and... $http_date = parse_date($timestamp); among other things. All return dates that vary from 1969 to yesterday. I don't get it. I look at the timestamp in the database and it is set to the correct time.

I just need to go from this:

2008-11-03 19:03:44

to this:

Mon, 03 Nov 2008 20:15:00 EST