[Grendel]

Yep.

Plugin-Titel: name it what you want, e.g. Thread Start Date
Hook: threadbit_process
Plugin-Code:

if ($thread['dateline'])
{
	$thread['creationdate'] = vbdate($vbulletin->options['dateformat'], $thread['dateline'], 1);
	$thread['creationtime'] = vbdate($vbulletin->options['timeformat'], $thread['dateline']);
}

Template-Change in threadbit (whereever you want to show up the date) add:

$thread[creationdate]

That's taken from: https://vborg.vbsupport.ru/showthread.php?t=93074