Calendar Plug In

Does JotForm have a plugin that connects a form to Outlook Calendar for someone to reserve a meeting time through Jotform and book the meeting in real time on someone's calendar? We're currently using Calendly for this solution.

Unfortunately no we do not have support for the Outlook calendar.

You can vote to have this feature implemented in Zapier:

https://zapier.com/zapbook/jotform/outlook-com/

And it is possible to use Zapier to connect JotForm to Google Calendar:

https://zapier.com/app/editor/template/2606