How to tell and write the time in Italian with examples and exercises

How can you say "What time is it" in Italian?

Can you write the time in Italian? 5:40 PM

How can you write 10:30 AM in Italian?

Can you write the time in Italian? 9:19 PM

Sono le due del pomeriggio. 

Sono le sette e quaranta della mattina. 

Mancano 15 minuti alle quattro.