

Der Unterricht beginnt um Viertel nach acht.
[deːɐ ˈʊntɐrɪçt bəˈɡɪnt ˈʊm ˈfɪrtl̩ ˈnaːx ˈaxt.]
Lessons start at a quarter past eight.
Die Schule ist um Viertel vor zwei aus.
[ˈdiː ˈʃuːlə ˈɪst ˈʊm ˈfɪrtl̩ ˈfoːɐ̯ ˈtsvaɪ̯ ˈaʊ̯s.]
School is over at a quarter to two.
Ist es schon Viertel nach zehn?
[ˈɪst ˈɛs ˈʃoːn ˈfɪrtl̩ ˈnaːx ˈtseːn?]
Is it already a quarter past ten?
"das Viertel" is in the lesson "Education" (Level 35), along with 10 other useful words. LinDuo has 180 topic lessons like this one, 2,375 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.