Bulter Game - taking time off the clock

[zeedonk]

I saw the end of the game- lots of stuff going on. What is the theory/rule that allows the officials to take time off the clock after the clock stopped, then started, then the time out with 1.2 seconds left?

I understand the explanation- clock stopped for 1.3 seconds, therefore we subtract 1.3 from 1.2 (time left on the clock at time out)- game over.

I understand the use of replay, but the stopwatch idea seems to have saved the day. Does the alternate official or the scorer always have one in NCAA D-1 (or other levels)?

What do we do if this is NFHS? Most of us won't have monitors. I suspect if we officials even notice the brief clock stoppage with all else going on at 14.7, I don't think we could estimate the amount of time, and would probably just play on at 1.2.