This window holds the configuration settings for how appointment times display on the Time panel of the scheduler when clients are booking a service-based appointment with you.
You'll find this window by going to Settings → Time → Service Time Display:
By clicking the Service Time Display option, you'll bring up the window that will allow you to adjust how your appointment time slots display for service based appointments or whether you want to calculate travel times between appointments if you offer appointments at your clients' addresses:
On here you can adjust your:
When you open up your Service Time Display window under Settings → Time, you'll see the option to adjust Appointment Start Times:
By default this is set to "Show start times based on service durations". To illustrate what this means, let's walk through and example. Let's say you're a massage therapist that has a "Deep Tissue Massage service set to last for 1 hour & 30 minutes and you have availability set up between 9:00am – 5:00pm. If you have your Appointment Start Times set to "Show start times based on service duration," then you could have appointments scheduled from:
If you switched to "Show start times on the hour" then the time slots for the appointment offerings would be (assuming no other appointments had been booked and you had completely open availability)
If someone booked the 11:00am timeslot with you, then the 12:00pm timeslot would be removed since the 11:00am-12:30pm appointment conflicts with that opening. The next available appointment would then be at 1:00pm.
If you switched to "Show start times every 30 minutes" then the time slots for the appointment would be:
Similarly to the example with the "Show start times on the hour" above, if someone booked the 11:00am-12:30pm appointment with you, then the 11:30am-12:30pm appointment and then 12:00pm-1:30pm appointment would be removed as the 11:00am-12:30pm appointment timeslot conflicts with it. The next available appointment would be at 12:30pm.
Switching it to "Show start times every 15 minutes", "Show start times every 10 minutes" or "Show start times every 5 minutes" would break down your appointment time slots in the same way as in the examples above but just in 15, 10, & 5 minute starting time increments.