Question about Hikaru Sulu in treklit

[TheAlmanac]

Actually those birthdates for Sulu and Uhura (taken from conjectures in the Okudachron based on the actors' ages as of TOS) are probably a bit late, given what we now know about them from the new movie. They'd be only 21 and 19 at the time of the movie, respectively. Maybe that could barely work for Sulu, but Uhura would have to be older, which is presumably why Memory Alpha has redacted the birth year from its Uhura article.

OTOH, Chekov definitely has a different birth year in that timeline, so all we know with absolute certainty is that Sulu and Uhura appear to be older there--which also goes for anyone else born after 2233.

It might be frustrating to strictly define things that way, but TPTB really opened that can of worms themselves with Chekov.