9:00 - It’s nine o’clock

9:05- five past nine

9:10 - ten past nine

9:15 - quarter past nine

9:20 - twenty past nine

9:25- twenty five past nine

9:30- half past nine

9:35 - it’s twenty five to ten

9:40- twenty to ten

9:45 - quarter to ten

9:50- ten to ten

9:55 - five to ten