сколько времени прошло

how much time has passed

→ сколько
phrase Rare #34,725
how much time has passed Used to ask about the amount of time since something happened; often means 'how long has it been'.
RU: Сколько времени прошло с нашей последней встречи?
EN: How long has it been since our last meeting?

Я не знал, сколько времени прошло.

I didn't know how much time had passed.

— Расёмон (1950)

Сколько времени прошло с тех пор?

How much time has passed since then?

— Солярис (1972)

Сколько времени прошло, как пропал ваш сын?

How long has it been since your son went missing?

— Приют (2007)

Сколько времени прошло!

How much time has passed!

— Развод по-итальянски (1961)