---
title: startDateComponents
framework: eventkit
role: symbol
role_heading: Instance Property
path: eventkit/ekreminder/startdatecomponents
---

# startDateComponents

The start date of the task.

## Declaration

```swift
var startDateComponents: DateComponents? { get set }
```

## Mentioned in

Creating events and reminders

## Discussion

Discussion The use of date components allows the start 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. The start date components’s timeZone property corresponds to the timeZone property on EKCalendarItem. A change in one value will cause a change in the other. Setting the time zone directly on the components does not guarantee that your changes will be saved; instead, pull this property from the reminder, set the time zone on it, and assign it back to the reminder: NSDateComponents *start = myEKReminder.startDateComponents; start.timeZone = myNSTimeZone; myEKReminder.startDateComponents = start;

## See Also

### Accessing Reminder Properties

- [EKReminderPriority](eventkit/ekreminderpriority.md)
- [priority](eventkit/ekreminder/priority.md)
- [dueDateComponents](eventkit/ekreminder/duedatecomponents.md)
- [isCompleted](eventkit/ekreminder/iscompleted.md)
- [completionDate](eventkit/ekreminder/completiondate.md)