Instance Method


Returns by reference the era, year, week of year, and weekday component values for a given date.


func getEra(_ eraValuePointer: UnsafeMutablePointer<Int>?, yearForWeekOfYear yearValuePointer: UnsafeMutablePointer<Int>?, weekOfYear weekValuePointer: UnsafeMutablePointer<Int>?, weekday weekdayValuePointer: UnsafeMutablePointer<Int>?, from date: Date)



Upon return, contains the era of the given date.


Upon return, contains the year of the given date.


Upon return, contains the week of the given date.


Upon return, contains the weekday of the given date.


The date for which to perform the calculation.


Pass NULL to ignore any individual component parameter.

This is a convenience method for getting the time components of a given date using components(_:from:)

See Also

Extracting Components

func date(Date, matchesComponents: DateComponents)

Returns whether a given date matches all of the given date components.

func component(NSCalendar.Unit, from: Date)

Returns the specified date component from a given date.

func components(NSCalendar.Unit, from: Date)

Returns the date components representing a given date.

func components(NSCalendar.Unit, from: Date, to: Date, options: NSCalendar.Options = [])

Returns the difference between two supplied dates as date components.

func components(NSCalendar.Unit, from: DateComponents, to: DateComponents, options: NSCalendar.Options = [])

Returns the difference between start and end dates given as date components.

func components(in: TimeZone, from: Date)

Returns all the date components of a date, as if in a given time zone (instead of the receiving calendar’s time zone).