7:30 - half past seven o'clock
6:20 - twenty past six o'clock
9:15 - quarter past nine o'clock
8:40 - twenty to nine o'clock
12:00 - twelve o'clock
2:30 - half past two o'clock
6:55 - five to six o'clock
4:45 - quarter to five o'clock
1:20 - twenty past one o'clock
3:25 - twenty-five past three o'clock
