"To tylko sekunda."

Translation: It is just a second.

[Ian75679]

Is this the equivalent or similar to the English phrase "just a minute"? Used when someone asks you to do something but you are currently busy?

[immery]

That would be probably "za moment" "sekundę" "minutkę"

"to tylko sekunda" could work in telling you "it will take only a second", but "minutka=little minute" or "chwila/chwilka" (a moment) would work better.