Как сказать по 07: 00, 07: 15, 07: 40, 08: 10, 12: 30, 3: 00, 6: 20, 9: 00

Seven o'clock
seven hours fifteen minutes
seven o'clock and forty minutes
eight o'clock ten minutes
twelve o'clock thirty minutes
three hours
six o'clock and twenty minutes
nine o'clock