One of the elements in narratives is chronology or the way the events are organized. The most common ways to organize events are:
Reverse chronological: This means the story begins with the final events and the narrator describes the events that occurred before.
Chronological: This means the events are organized from the oldest event to the most recent event or in the way the events naturally occurred.
Time shifts: This means the author includes either events from the past or future while describing the present or there is a sudden time shift.
Based on this, the narrative presented shows time shifts because the main character is preparing for a speech (present) but she remembers an event from the past.