Jet Li, of YaBB and BoardMod, has released a timelock update called Timelock (in Minutes) V1.1 for YaBB 2.2.1 on BoardMod.  Here are the details as posted by Jet Li:

Hi YaBBer
I update a little modification for Ron Spikecity. Standard in YaBB 2.2.1 are only edit/delete posts in days, which is very long. This was requested by Mick in Info4Alien Board.  
 
Ron allows to me to release this little modification.