Apologies - I wasn't sure of the standard procedure for adding dates in the headline (I've seen them added to posts ad-hoc and wasn't sure if they were added by

Apologies - I wasn't sure of the standard procedure for adding dates in the headline (I've seen them added to posts ad-hoc and wasn't sure if they were added by the mods etc if they made the front page). Would be happy to edit but I just realised I can't edit the post's title - what would be the best way to rectify in this situation? Cheers.