3/10 second or less

[IndianaUmpRef]

I remember that Knicks/Bulls game.

There was :00.1 on the clock. And somehow, a guy got a shot off before triple-zeroes from way beyond the 3-point line.

The following year, the NBA, NCAA, and a year later the NFHS included a rule stating that you can only attempt a 'tip' at the goal with :00.3 or less on the clock. Therefore, if the clock operator makes a mistake and starts the clock late and the guy gets a shot off before triple-zeroes, it doesn't matter, its not legal, and according to the experts, not possible either.