To complete a task in a shorter amount of time, so you can do it more quickly.
to save time
We say that when the amount of time to complete sth is over.
time's up
To make time pass quickly (usually because you're bored).
to kill time
When sth takes up a lot of your time, you say it's ____ - _____.
time-consuming
Sth ____ ____ your time when it consumes most of it (= to fill your time).
to take up your time
When you have nothing mandatory to do or you have extra time to fill it the way you prefer.
to have time on your hands
To act as a compensation for something (eg: for lost time).
to make up for
When you get something done just before the deadline.
in the nick of time
To delay something/stall someone on purpose in order to gain extra time.
to play for time
When you have ___ __ _____, it means you have extra time (eg: you finished a task sooner than expected, or you got to a place earlier than required).
time to spare