вторые сутки

for two days now

→ второй
phrase Rare #46,814
for two days now Describes something that has continued into its second consecutive day.
RU: Я вторые сутки жду ответа.
EN: I've been waiting for an answer for two days now.

Вторые сутки не сплю.

I haven’t slept in two days.

— Ballad of a Soldier (1959)

У меня вторые сутки голова не проходит.

I've had a headache for two days now, and it won't go away.

— Мой друг Иван Лапшин (1985)

Ну прям вторые сутки болит голова.

I've had a headache for nearly two days straight.

— Мой друг Иван Лапшин (1985)