now, presently / immediately, at once

moment of truth, day of reckoning

(figuratively) moment in the sun, 15 minutes of fame, glory days

to bide one's time

anytime, at all times, round the clock

from one hour to the next, by the hour, from hour to hour, increasingly, progressively

(idiomatic) dusk, twilight

General expression of approval: splendid! that's the spirit! that's great!

(literally) at the right time

what time is it?