Originally Posted by
Martyr
It's incredibly easy.
All you have to do is get a pen and paper and walk around the city of Zozo to talk to every single person and write down the numbers of the first and second hand, all while battling monsters who are fairly tough every few steps.
Make sure you talk to lots and lots of Zozoans so you know which numbers are wrong. Try not to get obliterated by the giant dude's earthquake spell or his punches. Try not to have all your gold stolen by the reaper dude.
Hopefully, if you took great notes and/or have a great memory, and if you spoke to everybody and spent a whole ton of time wandering Zozo, then the answer to the clock should be easy.
First time I played, I don't think I ever even clicked on the stupid clock. I just gave Edgar the Atma weapon and wondered for the rest of the game why it sucked so bad.