Ivan’s dad says:
С утр
а до ве чера я рабо таю до ма.
Prepositions С and ДO when they denote a time frame are used with the Genitive case.
There’s one more important phrase in the monologue:
В
е чером я всегда в теа тре, в кино и ли на вы ставке в муз ее.
As you already know, to the question Где? (Where?) we always answer in the Prepositional case (see Lesson 8). The only problem is which preposition to choose: В or НА . Sometimes it’s not very easy to understand, so just remember that we say: