the time slots are not working properly

Hello,

I would like to set certain times where you can book an appointment. The appointments are always 25 minutes long.

If I edit my times in the backend according to this guide, it doesn’t work:
https://salonbookingsystem.helpscoutdocs.com/article/163-how-time-slots-are-calculated

if I enter 8:30 and the next appointment starts at 9:15 and I enter such different booking rules then the frontend does not show 8:30! It shows then 8:15 and everything shifts by 15 minutes. Unfortunately, I can’t set an appointment to last 25 minutes. We always have a 20 minute break between appointments.

How can I solve this problem?

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