When scheduling a meeting with multiple attendees across different regions, the instant booker only allows two time zones to be compared at once. This limits usability for global teams where participants may span three or more time zones.

The instant booker should allow users to add and compare more than two time zones simultaneously when finding availability.

For global teams, being limited to two time zones means additional manual effort to coordinate across regions, which slows down scheduling and increases the chance of booking errors.