Some embodiments provide a method for creating a new appointment for an electronic calendar. The method receives a set of proposed attendees for the new appointment. The method retrieves and analyzes calendars of the proposed attendees. The method proposes a time for the new appointment at which all proposed attendees, including an organizer of the appointment, are available to attend the new appointment. In some embodiments, the proposed time is an earliest future time at which all proposed attendees are available to attend the new appointment. In some embodiments, the method also proposes a second time for the new appointment at which a subset of the proposed attendees are available to attend the new appointment.