1) 18:45 It*s 15 min. to 7 /It*s a quarter to 7
2) 19:15 It*s 15 min. past 7 /It*s a quarter past 7
3) 21:30 It*s half past 9/ It*s 30 minutes past 9
4) 14:30 It*s half past 2/ It*s 30 minutes past 2
5) 21:00 It*s 9 o*clock
6) 4:30 It*s half past 4/ It*s 30 minutes past 4
7) 2:50 It*s 10 minutes to 3
8) 10:15 It*s 15 min. past 10/ It*s a quarter past 10
9) 9:20 It*s 20 min. past 9/ It*s nine twenty