I'd like to suggest adding an "end date and time" option for calendar availability settings. This feature is important because many businesses schedule meetings or campaigns within specific date ranges such as for promotions, limited-time offers, event-based scheduling, or seasonal services.

Currently, we can set general availability, but without the ability to define a specific end date and time, it becomes difficult to manage time-bound booking periods effectively. Adding this option would greatly enhance control over scheduling and prevent unwanted bookings outside the intended timeframe.