Hi Raymond,
Thank you for contacting Syncfusion support.
Regarding Query : Is there a way to be able to click an empty part of the calendar and have a dialog box appear with the time that I clicked on?
Based on the shared information, we have analyzed and your requirement is “Appointment editor support in the Flutter Calendar using onTap callback”. We have a KB document to add the appointments by tapping the empty cells using editor. Please find the KB from the following link,
We hope that this helps you. If this is not your requirement, can you please more details about your requirement clearly. It would be helpful for us to analyze and provide you a solution at the earliest.
Regards,
Indumathi R