девяти часов

nine o'clock; nine hours

→ девять
phrase Rare #44,839
nine o'clock; nine hours Used with prepositions such as с (from), до (until), после (after), and около (about). In time expressions, it usually means nine o’clock; with a duration meaning, it means nine hours.
RU: Мы встретимся после девяти часов.
EN: We'll meet after nine o'clock.

Музей работает с девяти часов утра.

The museum is open from nine in the morning.

Время завтрака с семи до девяти часов.

Breakfast time is from seven to nine o'clock.

Том работает около девяти часов подряд.

Tom works for about nine hours straight.