# year() Modifies the date interval format style to include the year. ``` func year() -> Date.IntervalFormatStyle ``` ## Return Value A date interval format style that includes the year. ## Discussion Use a combination of modifier instance methods to customize the format of the date interval. The following example shows several combinations of year, month, and day components in the date interval: ```swift if let today = Calendar.current.date(byAdding: .day, value: -140, to: Date()), let sevenDaysBeforeToday = Calendar.current.date(byAdding: .day, value: -7, to: today) { // Create a Range. let weekBefore = sevenDaysBeforeToday..