a moment
A moment.
Ese fue sin duda un instante mágico.
That was undoubtedly a magical moment.
Se calla un instante, y entonces le dice que no le queda mucho tiempo de vida.
He falls silent for a moment, then tells him that he doesn’t have much time left to live.
— It's Such a Beautiful Day (2012)
No eras tan arrogante hace un instante?
Weren’t you being so arrogant just a moment ago?
— Fearless - Sin miedo (2006)
Hubo un instante en que podría haberlo perdonado.
There was a moment when I could have forgiven him.
— Peaky Blinders: El hombre inmortal (2026)
Un instante estabas ahí, al otro habías desaparecido.
One moment you were there, the next you were gone.