Lets say an average game is 40 moves, each move adds 2 seconds to the clock.
40*2= 80
Add the 8 minutes.
1m20s +8m = 9min 20s
So an average 8|2 game lasts 9minutes and 20seconds
Lets compare this to a 5|5 blitz game
40*5=200s
3m20s+5m= 8min 20s
I'd say that 8|2 is probably a blitz game. The average time between 8|2 and 5|5 is relatively close, and both are under 10mins.
8|2 mins
8mins plus 2seconds increment
I'm not talking about online chess I'm talking about official FIDE rules. Normally it says blitz should be 10mins or less , BUT 8|2mins can be less then 10mins time frame and at the same time it can be more, depends on number of moves of course.
So what is it ?