Full Idea
The instant signifies something such that changing occurs from it to each of two states. …This queer creature the instant lurks between motion and rest - being in no time at all - and to it and from it the moving thing changes to resting, and vice versa.
Gist of Idea
The instant has no time, but change moves to rest in an instant
Source
Plato (Parmenides [c.366 BCE], 156d)
A Reaction
An instant of time, and the now, strike me as the weirdest and most incomprehensible features in all of reality. I have nothing more to say on the subject. How could the place where past meets future have a duration of its own?
Book Reference
Plato: 'Parmenides', ed/tr. Gill,M.L./Ryan,P. [Hackett 1996], p.163