Calendar management is a service offered by virtual assistants that involves the organization and maintenance of the client's schedule. It includes activities such as scheduling appointments, booking meetings, and coordinating events. A calendar management virtual assistant can also handle calendar updates, send reminders, and manage changes to the client's schedule. They may also provide assistance with time zone adjustments and other scheduling-related tasks. Overall, the goal of calendar management is to help clients stay organized and on schedule, ensuring that they can focus on their core business activities without the stress of managing their own calendar.