The phrase "exact moment" means a very specific and precise point in time. It refers to a particular instant that is accurate and not vague or approximate. Full definition
The moment you stop caring about how people perceive you is the same exact moment you learn that your own opinion is the one that matters the most. (missamymay.com)
I don't know at what exact moment that I turned from someone that was neutral about pets to someone that was head over heels in love with animals. (itchmo.com)
See below the Options System Chart show exact moments when signals were issued and how underlying stock moved after that.These Signals Charts show how easy to trade the signals.. (marketvolume.com)