9点15的英文：a quarter past nine
1. By 9.15 a bitter north-east wind was blowing.
2. A table for two for this evening at 15 for Mr. Richard.
3. We reached the station in good time to catch the 9:15 bus for New York.
4. We reached the station in good season to catch the 9:15 train for New York.
5. "Nine," said I. "Nine thirty," tried he. We compromised on 9.15.
6. It'started at fifteen minutes past nine.
7. Tim Delaney's typical work day begins at 8:15 am and ends at 9 pm.