Break Hours

Hi, I should manage the appointments for lessons in this way, I do not know if it’s possible: I work from 9.00 to 12.30 and then from 19.00 to 20. The appointments are one hour each, but every time an appointment is made, that the next one must be available one and a quarter hours later. For example: the lesson lasts one hour, we book from 9.00 to 10.00 and the next lesson should be from 10.15 to 11.15, then the one after 11.30 to 12.30 etc. it’s possible?