

Я свободен завтра после полудня.
I'm free tomorrow afternoon.
Мы встретимся в субботу после полудня?
Are we meeting on Saturday afternoon?
Банк не работает после полудня.
The bank is closed in the afternoon.
"после полудня" is in the lesson "Time 1" (Level 1), along with 9 other useful words. LinDuo has 180 topic lessons like this one, 2,380 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.