Contents

dayOfYear(_:)

Modifies the date format style to use the specified day of the year format style.

Declaration

func dayOfYear(_ format: Date.FormatStyle.Symbol.DayOfYear = .defaultDigits) -> Date.FormatStyle

Parameters

  • format:

    The day of the year format style applied to the date format style.

Return Value

A date format style modified to include the specified day of the year style.

Discussion

Values of Date.FormatStyle.Symbol.DayOfYear are defaultDigits, threeDigits, and twoDigits.

This example shows a variety of Date.FormatStyle.Symbol.DayOfYear formats applied to a date:

let meetingDate = Date() // Feb 9, 2021 at 3:00 PM
meetingDate.formatted(Date.FormatStyle().dayOfYear(.defaultDigits)) // 40
meetingDate.formatted(Date.FormatStyle().dayOfYear(.twoDigits)) // 40
meetingDate.formatted(Date.FormatStyle().dayOfYear(.threeDigits)) // 040
meetingDate.formatted(Date.FormatStyle().dayOfYear()) // 40

If you don’t provide a format, the defaultDigits static variable is the default format.

For more information about formatting dates, see Date.FormatStyle.

See Also

Specifying the Date Format