At 7.00 am - at seven o'clockat 7.15 am - a quarter past seven
at 7.30 am - a half past seven
at 8.05 am - five minutes past eight
at 10.30 am - a half past ten
at 2.00 pm - two o'clock
at 4.10 pm ten past four
at 5.30 pm - a half past five
at 7.10 pm ten past seven
at 9.05 pm five past nine