What time is it?

It's eight o'clock. --> 8.00
It's a quarter past eight --> 8.15 (Passa un quart de les vuit)
It's half past eight --> 8.30 (Passa mitja hora de les vuit)
It's a quarter to nine --> 8.45 (Falta un quart per les nou)
It's nine o'clock --> 9.00 Its time to go to school!!!!

It's five past nine --> 9.05 (Passen 5 minuts de les nou)
It's twenty past nine --> 9.20 (Passen 20 minuts de les nou)
It's twenty to ten --> 9.40 (Falten 20 minuts per les 10)
It's ten to ten --> 9.50 (Falten 10 minuts per les 10)

Practice in this website:
http://www.teachingtime.co.uk/clock2/clockwordsres.html