Here's an interesting phrase that you can use when you are running out of time.
You can say that you are working against the clock.
This means that you only have a certain amount of time in which to do or complete something.
You are in a rush to get something done.
You are doing something against the clock.
My boss needs this report by tomorrow morning.
I am working against the clock.
I only have 60 seconds to explain this phrase to you.
I am working against the clock.
Time is running out.
You are working against the clock.