Firebase subscribe and store to array

Ionic Framework ionic-v3
1

How can I store firebase objects information into an array?

   this.events$ = this.afDatabse.list('/events/').valueChanges().subscribe(data => {
      console.log(data);
    })

This one:
public events: CalendarEvent[] = [{}]

export interface CalendarEvent {
  start: Date;
  end?: Date;
  title: string;
  color: EventColor;
  actions?: EventAction[];
  allDay?: boolean; 
}

I’m trying to pass events to angular calendar and display them. Possibly I will need too convert data to UTC.

Thank you