make up for lost time

Translations
наверстать упущенное время
After the delay, they worked hard to make up for lost time.
После задержки они усердно работали, чтобы наверстать упущенное время.
Definitions
To do something more quickly or with greater effort than usual because you started late or have been delayed, in order to reach a goal or compensate for time that has already been wasted or lost.
Words
time

noun
раз
make

verb
делать
make up

verb
составлять