I wanna know if we i can know exactly time of baium spawning i mean if last baium was killed Monday at hour 3:20 P.M , next respawn wi'll be in 5 days that means ... Saturday and hour ?! I know it's a random time +8h but ... it's a trick or smthg ? If he's not up in 5 days and i don't know .. 3h , then he'll be up when wi'll be exacty 8h ?

Depends on the server.

Normally, spawn time is 5 day's and randon time  + - 8 hours I think

l2retail serv it's a German one ...

that depends... check on your server website, or simply ask to some1 in server... if you cant know that way can be like retail.... 5 days..... ( i think )

when a GM comes on-line ask him.... or check baiums lair everyday, 2 times a day xD

epics raids its a month..in the server i play (gz)