6:00 It's six o'clock.
6:05 It's five past six.
7:10 It's ten past seven.
8:15 It's (a) quarter past eight.
9:20 It's twenty past nine.
10:25 It's twenty-five past ten.
11:30 It's half past eleven.
11:35 It's twenty-five to twelve.
10:40 It's twenty to eleven.
9:45 It's (a) quarter to ten.
8:50 It's ten to nine.
8:55 It's five to nine.
6:00 It's six o'clock.
6:05 It's five past six.
7:10 It's ten past seven.
8:15 It's (a) quarter past eight.
9:20 It's twenty past nine.
10:25 It's twenty-five past ten.
11:30 It's half past eleven.
11:35 It's twenty-five to twelve.
10:40 It's twenty to eleven.
9:45 It's (a) quarter to ten.
8:50 It's ten to nine.
8:55 It's five to nine.