(informal) H-hour; a decisive, crucial, exact or opportune moment / (Brazil, euphemistic) the moment of sex or (more specifically) the orgasm

(Brazil, idiomatic, informal) to take too much time on purpose; to stall, waste time

(Brazil) rush hour (times of day when traffic jams are commonplace, principally due to commuting)

(idiomatic) about time (it is far past the desired time)

(idiomatic) out of turn (in an inappropriate time)

(Portugal) rush hour (times of day when traffic jams are commonplace, principally due to commuting)

(idiomatic) can't wait (eagerly anticipate)

(idiomatic) at an undetermined time, but inevitably

(idiomatic) at the last minute (for an appointment, etc.)

Syncopic form of de uma hora para outra