Adding Schedule to Service Catalog Items

[MGanon]

When selecting a date on a catalog item, we need to restrict users from selecting scheduled blackout dates like weekends and holidays. Is this possible without extensive scripting?

[Madankumar N1]

We can achieve this on using onchange client script with glide ajax call validate date

[MGanon]

Do you have an example script that I can use to call a calendar to prevent dates/times that are outside of posted business hours?