до тридцати

up to thirty

→ до
phrase Rare #39,260
up to thirty With counting, it means to count as far as thirty. With лет, it can mean before the age of thirty.
RU: Она досчитала до тридцати.
EN: She counted up to thirty.

Давай до тридцати.

Let's go until thirty.

— Подводная лодка (1981)

Я выписал все числа до тридцати одного.

I wrote down all the numbers up to thirty-one.