I'm trying to create a sign up where users can sign up for a 20 minute interview slot. The interviews are weekly on Monday from 9-10 AM and Wednesday from 1-2 PM.
I'm hoping to create a validation where it only allows users to select times from those slots. As a bonus, it would also only show those time slots available in the date/time selector on the form.
I'm thinking to use a Confiform Rule Definition, but am not sure how to isolate the time data from the date-time field.