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# dueDateComponents

The date by which the reminder should be completed.

```
var dueDateComponents: DateComponents? { get set }
```

## Discussion

The use of date components allows the due date and its time zone to be represented in a single property. A `nil` time zone represents a floating date. Setting a date component without an hour, minute and second component will set the reminder to be an all-day reminder. If this property is set, the calendar must be set to `NSGregorianCalendar`; otherwise an exception is raised.

This components’s `timeZone` property is independent of time zone properties on [`startDateComponents`](/documentation/EventKit/EKReminder/startDateComponents) and its super [`EKCalendarItem`](/documentation/EventKit/EKCalendarItem) object. By default, the due date is set to the system time zone.

### Special Considerations

On iOS, Event Kit requires that a start date is set if the due date is set, however this is not a requirement in macOS.

---

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