A medical appointment, job interview or personal obligation may need to block time without broadcasting its title and description. Google Calendar offers event visibility controls such as Default, Public and Private, but their effect depends on the calendar's broader sharing permissions. A recipient with only free/busy access sees limited information already; someone with edit or manage-sharing power may have more. Build the appointment on the right calendar, choose a suitable visibility value and verify what the other person actually sees.
Before you start
Confirm which Google Account and calendar contain the appointment. On a workplace calendar, administrators and people with delegated privileges may have access that ordinary colleagues do not. Avoid sensitive information in event titles, locations, guests or notifications if the audience is uncertain. For very sensitive details, use a separate private calendar or personal account when policy permits.Do it step by step
- Open the appointment in Google Calendar and inspect its Calendar field. Moving an event to another calendar can change its sharing audience, so do not edit visibility before knowing its home.
- Review the calendar's access permissions and named shares on a computer. Identify whether coworkers see free/busy, all details, or can make changes. Check any public or organization-wide permission before relying on a private event toggle.
- Edit the event's visibility to Private when you want a busy block without ordinary shared-event details under the supported permission model. Ensure it is marked Busy if you want it to block scheduling; an event marked Free may not appear in a free/busy view.
- Remove confidential notes from a field that may be copied into invitations or email notices. Verify invited guests separately: being a guest is a direct route to event details, not merely calendar-sharing access.
- Ask a trusted person with the same permission as the intended audience to inspect your calendar, or use a controlled secondary account. Confirm the event appears only as the intended busy period. Do not infer privacy from how it looks in your own signed-in view.
- If the result is too revealing, use a private personal calendar or change broader sharing. Recheck recurring events and all instances before editing a series, because one occurrence can differ from the rest.