Returns a new date representing the date calculated by setting a specific component of a given date to a given value, while trying to keep lower components the same.
- iOS 8.0+
- macOS 10.9+
- Mac Catalyst 13.0+Beta
- tvOS 9.0+
- watchOS 2.0+
NSDate instance representing the date calculated by setting a specific component of a given date to a given value. If the unit already has that value, this may result in a date which is the same as the given date. If no such time exists for the specified components, the next available date is returned, which may be on a different calendar day.
Changing a component's value often requires higher or coupled components to change as well. For example, setting the
weekday to "Thursday" will require the
day component to change its value, and possibly the
year as well. You can use the
next method to specify more precise behavior for determining the next or previous date for a given date component.