Post's Date

How would one go about changing a post's date?

I'm asking because I want to change the OP (original post) of a thread and I figured that by starting a new thread and changing the date of the OP on there, and then merging the two topics together could actually work.

Also, if anyone here's got an alternative approach to changing the OP of a thread, then please share!

P.S. - I don't know if my forum's format is either phpBB 2 or phBB 3.
P.S.S. - My apologies if this was posted in the wrong section.

Hello BaneDaymare,

You cannot modify the data of a post to an earlier or later date.

Oh, I see... too bad.

Is there any other way of changing a thread's first post without having to delete everything then?

I believe no.

You can only edit what was posted.