against time
In a very limited amount of time; with a shortage of time being the main problem. The team worked against time to get the project completed before midnight.
against ˈtime
(also against the ˈclock) if you do something against time, you do it as fast as you can because you do not have much time: We’ve only got two days to find a replacement, so we’re racing against time.They’re working against the clock to try and get people out of the rubble alive. against time
With a quickly approaching time limit: worked against time to deliver the manuscript before the deadline.