Cambridge Advanced Learner's Dictionary - 4th Edition
waking / ˈweɪ.kɪŋ / adjective [ before noun ]
describes a period of time or an experience during which you are awake:
Children are in school for 15 percent of their waking hours/life between birth and the age of 16.
She seems to spend every waking moment/minute/hour (= all her available time) at the piano.
© Cambridge University Press 2013
