a race against time
US /ə reɪs əˈɡɛnst taɪm/
UK /ə reɪs əˈɡɛnst taɪm/

1.
una carrera contra el tiempo, una lucha contra el tiempo
a situation in which you have to do something very quickly before it is too late
:
•
Rescuers were in a race against time to find the missing hikers before nightfall.
Los rescatistas estaban en una carrera contra el tiempo para encontrar a los excursionistas desaparecidos antes del anochecer.
•
Finishing the report by Friday is a race against time.
Terminar el informe para el viernes es una carrera contra el tiempo.