extended time
beforehand
extra hours or extended hours
A moment, a second, an instant.
Another way of saying "most of the time" is: at intervals, at times, consistently, constantly, every so often, or frequently.
exposure time = induction period
jeopardy, exposure, danger, unsafe
another word for no time to play is buisy
Another word could be era.
Automatic exposure time electronic exposure time mechanical exposure time
extended time
time of need
timely
Hmmm, another ONE word for past and future? How about, "time."
no time
beforehand
until