Usages of čtvrt
Sekretářka mi ráno řekla, že porada bude až ve čtvrt na deset.
The secretary told me in the morning that the meeting would only be at quarter past nine.
Kurz češtiny začne ve čtvrt na osm.
The Czech course will start at quarter past seven.
Elon.io is an online learning platform
We have an entire course teaching Czech grammar and vocabulary.