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за два дня

in two days; two days before

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phrase Rare #41,402
in two days; two days before With a completed action, usually means that it took two days or was completed within two days. In phrases such as за два дня до этого, it means “two days before.”
RU: Она написала этот отчет за два дня.
EN: She wrote this report in two days.

За два дня перед тем он женился.

He got married two days before.

— Порко Россо (1992)

Он выполнил работу за два дня.

He completed the work in two days.

Новый пол положили за два дня.

The new floor was laid in two days.