limit editing time...in minutes?

as discussed in the linked thread, i've noticed that the limited editing time can be set up to 999 minutes, that actually are less than 17 hours.

i guess most admins would like to set it to "a few minutes", "a few hours", "a few days" or things like that.

it would be better either if the second limit was A LOT higher (say, 99999), or if you could chose that number to be either seconds or days.

i'd like to set it to several days but i can't, this way.

http://www.phpbb.com/community/viewtopic.php?f=46&t=554149&hilit=