8'00: eight o'clock
8'05: five past eight
8'10: ten past eight
8'15: a quarter past eight
8'20: twenty past eight
8'25: twenty five PAST eight
8'30: half past eight
8'35: twenty five TO nine
8'40: twenty TO nine
8'45: a quarter TO nine
8'50: ten TO nine
8'55: five TO nine
9'00: nine o'clock