Appointments+ Time Zones

Hi, We are trying to figure out a way to make Appointments+ schedule appointments accurately using Timezones.

Our business offers 1-on-1 support via appointments, but our customers live across multiple timezones. They schedule a 6pm meeting in a timezone that is 3 hours behind, means that the customer is called 3 hours early and the 6pm time slot for our timezone is no longer available.

Is there a way to add timezone support?