Abstract: Embodiments described herein may involve methods and systems for automatic generation of a calendar event with structured data from free-form speech. An example method may involve receiving a speech segment, where the speech segment includes a spoken-language description of an event. In some cases, a determination can be made that portions of the spoken-language description correspond to time data, substance of the event, location of the event, and/or event attendees. This determination may then be used to generate a calendar-event object, where a when-field of the calendar-event object is set based on the time data, where a what-field of the calendar-event object is set based on the substance of the event, where a where-field of the calendar-event object is set based on the location of the event and determined location information, and/or where a who-field of the calendar-event object is set based on event-attendees.