ask: ask sb the timezeptat se koho kolik je hodin
time: What time is it?Kolik je hodin?
time: He asked me the time.Zeptal se mě, kolik je hodin.
what: What time is it?Kolik je hodin?
hodina: Kolik je hodin?What time is it?
kolik: Kolik je hodin?What time is it?