2:35 - twenty five to three
8:15 - a quarter past eight
9:45 - fifteen to ten
3:30 - half past three
10:50 - ten to eleven
7:23 - twenty three past seven
1:13 - thirteen past one
11:15 - a quarter past eleven
2:15 - a quarter past two
5:30 - half past five
4:32 - twenty eight to five
12:40 - twenty to one (sau twenty to thirteen)