We've just had C3 (and event on this site) during which alsmost no hacks got moderated.
How long it takes for your hack to get accepted depends on how long the hack itself is and how fast enough reviews by the userbase are written. There really is no telling how long it will take. If it does take too long without even getting claimed (or after having been claimed, you may want to contact Counterfeit who'll then yell at the hack mods to do their jobs)
Also, moving this to where it belongs.
Anime statistic on
MyAnimeList:
400 animes completed ✓
6000 episodes completed ✓
100 Days completed ✓
... what even am I doing with my life?