The match will be held at the Arena Corinthians, Sao Paulo. Kick-off is at 17:00 local time.
Referee: Yuichi Nishimura (Japan)
My guess: Brazil 2 - 0 Croatia
To check the start time in your time zone click here (thanks to riahc3 for the suggestion).
The match threads worked well during the 2010 World Cup, so I figured we should have the same kind of threads for the 2014 World Cup as well.