Как сказать по английски 7 ч. 15 мин., 9ч. 45 мин. 5ч.30мин., 10ч.15мин.,12ч.,2ч.30мин.,6 ч.45мин., 4ч.помогите пж.!!!

a quarter past seven
a quarter to ten
half past five
a quarter past ten
twelve oclock
half past two
quarter to seven
four oclock

7:15= guarter past seven,9:45=guarter to ten,5:30=half past five,10:15=guarter past ten,12:00=twelve oclock,2:30=half past two,6:45=guarter to seven,4:00= four oclock