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Swift）でNSDateコンポーネントを操作する

いくつかのコンポーネントに分割する必要がある日付があります。例えば

let components = NSCalendarUnit.CalendarUnitDay | NSCalendarUnit.CalendarUnitHour
let date = calendar.components(components, fromDate: aDate, toDate: NSDate(), options: nil)
var dateToPrint = "\(date.day) days  \(date.hour) hours"

dateToPrintは、aDateから現在までの日数と時間数になります。しかし、日数ではなく週数が必要な場合

let components = NSCalendarUnit.CalendarUnitWeek | NSCalendarUnit.CalendarUnitHour
let date = calendar.components(components, fromDate: aDate, toDate: NSDate(), options: nil)
var dateToPrint = "\(date.week) weeks \(date.hour) hours"

date.weekは存在しません。では、どうすればこれを解決できますか？

iosmacosswiftnsdatensdatecomponents
11
Giorgio

Xcode8.3.2•Swift 3.1

extension Date {
    func xDays(_ x: Int) -> Date {
        return Calendar.current.date(byAdding: .day, value: x, to: self)!
    }
    func xWeeks(_ x: Int) -> Date {
        return Calendar.current.date(byAdding: .weekOfYear, value: x, to: self)!
    }
    var weeksHoursFromToday: DateComponents {
        return Calendar.current.dateComponents( [.weekOfYear, .hour], from: self, to: Date())
    }
    var relativeDateString: String {
        var result = ""
        if let weeks = weeksHoursFromToday.weekOfYear,
            let hours = weeksHoursFromToday.hour,
            weeks > 0 {
            result +=  "\(weeks) week"
            if weeks > 1 { result += "s" }
            if hours > 0 { result += " and " }
        }
        if let hours = weeksHoursFromToday.hour, hours > 0 {
            result +=  "\(hours) hour"
            if hours > 1 { result += "s" }
        }
        return result
    }
}

let today       = Date()                  // "May 1, 2017, 9:29 PM"
let yesterday   = Date().xDays(-1)        // "Apr 30, 2017, 9:29 PM"
let twoWeeksAgo = Date().xWeeks(-2)       // "Apr 17, 2017, 9:29 PM"
let anotherDate = DateComponents(calendar: .current, year: 2013, month: 12, day: 4).date!  // "Dec 4, 2013, 12:00 AM"
let anotherDate2 = DateComponents(calendar: .current, year: 2012, month: 12, day: 3).date!  // "Dec 3, 2012, 12:00 AM"


yesterday.relativeDateString          // "24 hours"
twoWeeksAgo.relativeDateString        // "2 weeks"
anotherDate.relativeDateString        // "177 weeks and 141 hours"
anotherDate2.relativeDateString       // "230 weeks and 21 hours"
yesterday.relativeDateString          // "24 hours"
twoWeeksAgo.relativeDateString        // "2 weeks"
anotherDate.relativeDateString              // "177 weeks and 141 hours"
anotherDate2.relativeDateString              // "230 weeks and 21 hours"
19
Leo Dabus

私はLeoのソリューションのAPIが好きで、それを使用しました。しかし、実行したときに問題が発生しました（2015年6月13日午前9時33分PST）。症状は次のとおりです。

  1. 日付が未来の場合、xFromToday関数は t-delta）の結果を返していました（たとえば、将来1か月間、XFromToday関数は（0、-4、-29、-719、-43199）を返します。 x =（月、週、日、時間、分）。relativeDates文字列は「今日から1週間」を返します。

  2. 日付が過去の場合、相対的な日付文字列を除いて、結果は-tになります。たとえば、過去1か月の場合、（1、4、31、744、44640）を取得します。相対的な日付文字列は次のとおりです：「4週間と744時間」

機密保持のためにテスト出力を貼り付けることはできませんが、NSDate.test（）のコードが貼り付けられています。また、別の投稿から借りたもの（コードで引用）や、私が書いたフォーマットのものもほとんどありません。

import Foundation

// https://stackoverflow.com/questions/27339072/working-with-nsdate-components-in-Swift

// **** Use with caution may not do what you expect. See the stackoverflow post above.  *******

public extension NSDate {


    func xDays(x:Int) -> NSDate {
        return NSCalendar.currentCalendar().dateByAddingUnit(.CalendarUnitDay, value: x, toDate: self, options: nil)!
    }
    func xWeeks(x:Int) -> NSDate {
        return NSCalendar.currentCalendar().dateByAddingUnit(.CalendarUnitWeekOfYear, value: x, toDate: self, options: nil)!
    }
    func xMonths(x:Int) -> NSDate {
        return NSCalendar.currentCalendar().dateByAddingUnit(.CalendarUnitMonth, value: x, toDate: self, options: nil)!
    }
    func xMins(x:Int) -> NSDate {
        return NSCalendar.currentCalendar().dateByAddingUnit(.CalendarUnitMinute, value: x, toDate: self, options: nil)!
    }
    func xHours(x:Int) -> NSDate {
        return NSCalendar.currentCalendar().dateByAddingUnit(.CalendarUnitHour, value: x, toDate: self, options: nil)!
    }
    var hoursFromToday: Int{
        return NSCalendar.currentCalendar().components(.CalendarUnitHour, fromDate: self, toDate: NSDate(), options: nil).hour
    }
    var weeksFromToday: Int{
        return NSCalendar.currentCalendar().components(.CalendarUnitWeekOfYear, fromDate: self, toDate: NSDate(), options: nil).weekOfYear
    }
    var daysFromToday: Int{
        return NSCalendar.currentCalendar().components(.CalendarUnitDay, fromDate: self, toDate: NSDate(), options: nil).day
    }
    var monthsFromToday: Int{
        return NSCalendar.currentCalendar().components(.CalendarUnitMonth, fromDate: self, toDate: NSDate(), options: nil).month
    }
    var minsFromToday: Int{
        return NSCalendar.currentCalendar().components(.CalendarUnitMinute, fromDate: self, toDate: NSDate(), options: nil).minute
    }
    var relativeDateString: String {
        if weeksFromToday > 0 { return weeksFromToday > 1 ? "\(weeksFromToday) weeks and \(hoursFromToday) hours" : "\(weeksFromToday) week and \(hoursFromToday) hours"   }
        if hoursFromToday > 0 { return hoursFromToday > 1 ? "\(hoursFromToday) hours" : "\(hoursFromToday) hour"   }
        return ""
    }

    //Date Comparisions
    //https://stackoverflow.com/questions/26198526/nsdate-comparison-using-Swift  


    func isGreaterThanDate(dateToCompare : NSDate) -> Bool
    {
        //Declare Variables
        var isGreater = false

        //Compare Values
        if self.compare(dateToCompare) == NSComparisonResult.OrderedDescending
        {
            isGreater = true
        }

        //Return Result
        return isGreater
    }

    func isLessThanDate(dateToCompare : NSDate) -> Bool
    {
        //Declare Variables
        var isLess = false

        //Compare Values
        if self.compare(dateToCompare) == NSComparisonResult.OrderedAscending
        {
            isLess = true
        }

        //Return Result
        return isLess
    }




    // Date printing converstions




    var dayMonthYear: String {
        let dateMonthYearFormatter: NSDateFormatter = NSDateFormatter()
        let currentLocale: NSLocale = NSLocale.currentLocale()
        let dateMonthYearFormatString: NSString! = NSDateFormatter.dateFormatFromTemplate("EdMMMyyyy",options: 0, locale: currentLocale)
        dateMonthYearFormatter.dateFormat = dateMonthYearFormatString as! String
        return dateMonthYearFormatter.stringFromDate(self)
    }

    var timeDayMonthYear: String {
        let dateMonthYearFormatter: NSDateFormatter = NSDateFormatter()
        let currentLocale: NSLocale = NSLocale.currentLocale()
        let dateMonthYearFormatString: NSString! = NSDateFormatter.dateFormatFromTemplate("EdMMMyyyy' ' HH':'mm",options: 0, locale: currentLocale)
        dateMonthYearFormatter.dateFormat = dateMonthYearFormatString as! String
        return dateMonthYearFormatter.stringFromDate(self)
    }


    var hourMin: String {
        let hourMinFormatter = NSDateFormatter();
        hourMinFormatter.dateFormat = "HH:mm"
        return hourMinFormatter.stringFromDate(self)
    }

    static func rfc3339DateFormatter() -> NSDateFormatter {
        let rfc3339DateFormatterRet = NSDateFormatter()
        let enUSPOSIXLocale: NSLocale = NSLocale(localeIdentifier: "en_US_POSIX")
        rfc3339DateFormatterRet.dateFormat = "yyyy'-'MM'-'dd'T'HH':'mm':'ss'Z'"
        rfc3339DateFormatterRet.locale = enUSPOSIXLocale
        rfc3339DateFormatterRet.timeZone = NSTimeZone(forSecondsFromGMT: 0)
        return rfc3339DateFormatterRet
    }


    var rfcString: String {
        return NSDate.rfc3339DateFormatter().stringFromDate(self)
    }
    func rfcDate(rfcString: String) -> NSDate {
    return NSDate.rfc3339DateFormatter().dateFromString(rfcString)!
    }

    func changeDate(toDate: NSDate) -> NSDate {

        let rfcToDate = toDate.rfcString
        let rfcSelf = self.rfcString
        let toDateArray : [String] = rfcToDate.componentsSeparatedByString("T")
        let selfArray : [String] = rfcSelf.componentsSeparatedByString("T")
        return rfcDate(toDateArray[0]+"T"+selfArray[1])

    }

    static func test(months: Int = 0, weeks: Int = 0, days: Int = 0, hrs: Int = 0, mins: Int = 0) {

        NSLog("****************** Start Testing of NSDate **************************")
        NSLog("Inputs: months:\(months) weeks:\(weeks) days:\(days) hrs: \(hrs) mins: \(mins)")
        var today = NSDate()
        NSLog("Today is: \(today.timeDayMonthYear)")

        var monthsFromToday = today.xMonths(months)
        NSLog("**  \(months) months from today: \(monthsFromToday.timeDayMonthYear)")
        NSLog("monthsFromToday returns: \(monthsFromToday.monthsFromToday)");
        NSLog("weeksFromToday returns: \(monthsFromToday.weeksFromToday)");
        NSLog("daysFromToday returns: \(monthsFromToday.daysFromToday)");
        NSLog("hoursFromToday returns: \(monthsFromToday.hoursFromToday)");
        NSLog("minsFromToday returns: \(monthsFromToday.minsFromToday)");
        NSLog("relativeDateString returns: \(monthsFromToday.relativeDateString)")

        var weeksFromToday = today.xWeeks(weeks)
        NSLog("**  \(weeks) weeks from today: \(weeksFromToday.timeDayMonthYear)")
        NSLog("weeksFromToday returns: \(weeksFromToday.weeksFromToday)");
        NSLog("relativeDateString returns: \(weeksFromToday.relativeDateString)")


        var daysFromToday = today.xDays(days)
        NSLog("**  \(days) days from today: \(daysFromToday.timeDayMonthYear)")
        NSLog("daysFromToday returns: \(daysFromToday.daysFromToday)");
        NSLog("relativeDateString returns: \(daysFromToday.relativeDateString)")

        var hrsFromToday = today.xHours(hrs)
        NSLog("**  \(hrs) hours from today: \(hrsFromToday.timeDayMonthYear)")
        NSLog("hoursFromToday returns: \(hrsFromToday.hoursFromToday)");
        NSLog("relativeDateString returns: \(hrsFromToday.relativeDateString)")

        var minsFromToday = today.xMins(mins)
        NSLog("**  \(mins) minutes from today: \(minsFromToday.timeDayMonthYear)")
        NSLog("minsFromToday returns: \(minsFromToday.minsFromToday)");
        NSLog("relativeDateString returns: \(minsFromToday.relativeDateString)")




        NSLog("__________________ End Testing of NSDate    _________________________")

    }
}

これが私が行った「修正」です。 「開始」と「終了」の日付を返すsantizedDates（）関数と、符号乗数（+ 1/-1）を追加しました。比較が将来の場合、1分のオフセットが日付スパンに追加されます。テストケースで機能します。また、relativeDateString（capitalizeFirst：Bool = false）から、「今日、1時間1分前」などの正確で人間が読める形式の出力を生成します。 なぜこの動作が最初にここで発生するのかについて質問を投稿しました：

---（NSCalendar.components（）。minuteが一貫性のない値を返す

import Foundation

// https://stackoverflow.com/questions/27339072/working-with-nsdate-components-in-Swift


public extension NSDate {


    func xDays(x:Int) -> NSDate {
        return NSCalendar.currentCalendar().dateByAddingUnit(.CalendarUnitDay, value: x, toDate: self, options: nil)!
    }
    func xWeeks(x:Int) -> NSDate {
        return NSCalendar.currentCalendar().dateByAddingUnit(.CalendarUnitWeekOfYear, value: x, toDate: self, options: nil)!
    }
    func xMonths(x:Int) -> NSDate {
        return NSCalendar.currentCalendar().dateByAddingUnit(.CalendarUnitMonth, value: x, toDate: self, options: nil)!
    }
    func xMins(x:Int) -> NSDate {

        return NSCalendar.currentCalendar().dateByAddingUnit(.CalendarUnitMinute, value: x, toDate: self, options: nil)!
    }
    func xHours(x:Int) -> NSDate {
        return NSCalendar.currentCalendar().dateByAddingUnit(.CalendarUnitHour, value: x, toDate: self, options: nil)!
    }
    var hoursFromToday: Int{

        var fromDate: NSDate = self
        var toDate: NSDate = NSDate()
        var sign: Int = -1
        (fromDate,toDate, sign) = self.sanitizedDates()

        return (sign * NSCalendar.currentCalendar().components(.CalendarUnitHour, fromDate: fromDate, toDate: toDate, options: nil).hour)
    }
    var weeksFromToday: Int{


        var fromDate: NSDate = self
        var toDate: NSDate = NSDate()
        var sign: Int = -1
        (fromDate,toDate,sign) = self.sanitizedDates()

        return (sign * NSCalendar.currentCalendar().components(.CalendarUnitWeekOfYear, fromDate: fromDate, toDate: toDate, options: nil).weekOfYear)
    }


    var daysFromToday: Int{

        var fromDate: NSDate = self
        var toDate: NSDate = NSDate()
        var sign: Int = -1
        (fromDate,toDate, sign) = self.sanitizedDates()


        return (sign * NSCalendar.currentCalendar().components(.CalendarUnitDay, fromDate: fromDate, toDate: toDate, options: nil).day)
    }
    var monthsFromToday: Int{


        var fromDate: NSDate = self
        var toDate: NSDate = NSDate()
        var sign: Int = -1
        (fromDate,toDate, sign) = self.sanitizedDates()

        return (sign * NSCalendar.currentCalendar().components(.CalendarUnitMonth, fromDate: fromDate, toDate: toDate, options: nil).month)

    }
    var minsFromToday: Int{


        var fromDate: NSDate = self
        var toDate: NSDate = NSDate()
        var sign: Int = -1
        var offset: Int = 0
        (fromDate,toDate,sign) = self.sanitizedDates()


        return ( sign * NSCalendar.currentCalendar().components(.CalendarUnitMinute, fromDate: fromDate, toDate: toDate, options: nil).minute)
    }

    func relativeDateString(capitalizeFirst:Bool = false) -> String {
        let days: Int = daysFromToday
        let mins: Int = minsFromToday % 60

        let tense: String = (minsFromToday > 0) ? " in the future" : " in the past"
        let hrs: Int =  hoursFromToday % 24
        var retString  = (capitalizeFirst) ? "Now" : "now"
        if(minsFromToday != 0) {
            if(days == 0) {
                retString = (capitalizeFirst) ? "Today" : "today"
                retString = (mins != 0 || hrs != 0) ? retString+"," : retString
            }
            else {
                let absDays = abs(days)
                retString = "\(absDays)"
                retString += (absDays > 1) ? " days" : " day"
            }
        if(hrs != 0) {
          let absHrs = abs(hrs)
             retString += " \(absHrs)"
            retString += (absHrs > 1) ? " hours" : " hour"
         }

            if(mins != 0) {
                let absMins = abs(mins)
                retString += " \(absMins)"
                retString += (absMins > 1) ? " minutes" : " minute"
            }

        retString += tense
        }

       return retString
    }

    //Date Comparisons
    //https://stackoverflow.com/questions/26198526/nsdate-comparison-using-Swift  


    func isGreaterThanDate(dateToCompare : NSDate) -> Bool
    {
        //Declare Variables
        var isGreater = false

        //Compare Values
        if self.compare(dateToCompare) == NSComparisonResult.OrderedDescending
        {
            isGreater = true
        }

        //Return Result
        return isGreater
    }

    func isLessThanDate(dateToCompare : NSDate) -> Bool
    {
        //Declare Variables
        var isLess = false

        //Compare Values
        if self.compare(dateToCompare) == NSComparisonResult.OrderedAscending
        {
            isLess = true
        }

        //Return Result
        return isLess
    }




    // Date printing converstions




    var dayMonthYear: String {
        let dateMonthYearFormatter: NSDateFormatter = NSDateFormatter()
        let currentLocale: NSLocale = NSLocale.currentLocale()
        let dateMonthYearFormatString: NSString! = NSDateFormatter.dateFormatFromTemplate("EdMMMyyyy",options: 0, locale: currentLocale)
        dateMonthYearFormatter.dateFormat = dateMonthYearFormatString as! String
        return dateMonthYearFormatter.stringFromDate(self)
    }

    var timeDayMonthYear: String {
        let dateMonthYearFormatter: NSDateFormatter = NSDateFormatter()
        let currentLocale: NSLocale = NSLocale.currentLocale()
        let dateMonthYearFormatString: NSString! = NSDateFormatter.dateFormatFromTemplate("EdMMMyyyy' ' HH':'mm",options: 0, locale: currentLocale)
        dateMonthYearFormatter.dateFormat = dateMonthYearFormatString as! String
        return dateMonthYearFormatter.stringFromDate(self)
    }


    var hourMin: String {
        let hourMinFormatter = NSDateFormatter();
        hourMinFormatter.dateFormat = "HH:mm"
        return hourMinFormatter.stringFromDate(self)
    }

    static func rfc3339DateFormatter() -> NSDateFormatter {
        let rfc3339DateFormatterRet = NSDateFormatter()
        let enUSPOSIXLocale: NSLocale = NSLocale(localeIdentifier: "en_US_POSIX")
        rfc3339DateFormatterRet.dateFormat = "yyyy'-'MM'-'dd'T'HH':'mm':'ss'Z'"
        rfc3339DateFormatterRet.locale = enUSPOSIXLocale
        rfc3339DateFormatterRet.timeZone = NSTimeZone(forSecondsFromGMT: 0)
        return rfc3339DateFormatterRet
    }


    var rfcString: String {
        return NSDate.rfc3339DateFormatter().stringFromDate(self)
    }
    func rfcDate(rfcString: String) -> NSDate {
    return NSDate.rfc3339DateFormatter().dateFromString(rfcString)!
    }

    func changeDate(toDate: NSDate) -> NSDate {

        let rfcToDate = toDate.rfcString
        let rfcSelf = self.rfcString
        let toDateArray : [String] = rfcToDate.componentsSeparatedByString("T")
        let selfArray : [String] = rfcSelf.componentsSeparatedByString("T")
        return rfcDate(toDateArray[0]+"T"+selfArray[1])

    }

    private  func sanitizedDates() -> (fromDate: NSDate, toDate: NSDate, sign: Int ) {
        var toDate: NSDate = self
        var fromDate: NSDate = NSDate()
        var sign: Int = 1
        // For toDates in the past, results are reasonable, except for sign. 
        //In future dates, we to flip dates to make them past dates and add 1 minute for unknown reason.
        if(toDate.isGreaterThanDate(fromDate)) {
           // NSLog("****** Flipping dates ********")
            toDate = fromDate.xMins(-1) // In this case, the results are consistently shorter by a minute
            fromDate = self
            sign  = -1
        }
        return (fromDate,toDate,sign)

    }

    static func test(months: Int = 0, weeks: Int = 0, days: Int = 0, hrs: Int = 0, mins: Int = 0) {

        NSLog("****************** Start Testing of NSDate **************************")
        NSLog("Inputs: months:\(months) weeks:\(weeks) days:\(days) hrs: \(hrs) mins: \(mins)")
        var today = NSDate()
        NSLog("Today is: \(today.timeDayMonthYear)")

        var monthsFromToday = today.xMonths(months)
        NSLog("**  \(months) months from today: \(monthsFromToday.timeDayMonthYear)")
        NSLog("monthsFromToday returns: \(monthsFromToday.monthsFromToday)");
        NSLog("weeksFromToday returns: \(monthsFromToday.weeksFromToday)");
        NSLog("daysFromToday returns: \(monthsFromToday.daysFromToday)");
        NSLog("hoursFromToday returns: \(monthsFromToday.hoursFromToday)");
        NSLog("minsFromToday returns: \(monthsFromToday.minsFromToday)");
        NSLog("relativeDateString returns: \(monthsFromToday.relativeDateString())")

        var weeksFromToday = today.xWeeks(weeks)
        NSLog("**  \(weeks) weeks from today: \(weeksFromToday.timeDayMonthYear)")
        NSLog("weeksFromToday returns: \(weeksFromToday.weeksFromToday)");
        NSLog("relativeDateString returns: \(weeksFromToday.relativeDateString(capitalizeFirst:true))")
        NSLog("minsFromToday returns: \(weeksFromToday.minsFromToday)");
        NSLog("monthsFromToday returns: \(weeksFromToday.monthsFromToday)");
        NSLog("weeksFromToday returns: \(weeksFromToday.weeksFromToday)");
        NSLog("daysFromToday returns: \(weeksFromToday.daysFromToday)");
        NSLog("hoursFromToday returns: \(weeksFromToday.hoursFromToday)");
        NSLog("minsFromToday returns: \(weeksFromToday.minsFromToday)");




        var daysFromToday = today.xDays(days)
        NSLog("**  \(days) days from today: \(daysFromToday.timeDayMonthYear)")
        NSLog("daysFromToday returns: \(daysFromToday.daysFromToday)");
        NSLog("relativeDateString returns: \(daysFromToday.relativeDateString())")
        NSLog("minsFromToday returns: \(daysFromToday.minsFromToday)");
        NSLog("monthsFromToday returns: \(daysFromToday.monthsFromToday)");
        NSLog("weeksFromToday returns: \(daysFromToday.weeksFromToday)");
        NSLog("daysFromToday returns: \(daysFromToday.daysFromToday)");
        NSLog("hoursFromToday returns: \(daysFromToday.hoursFromToday)");
        NSLog("minsFromToday returns: \(daysFromToday.minsFromToday)");




        var hrsFromToday = today.xHours(hrs)
        NSLog("**  \(hrs) hours from today: \(hrsFromToday.timeDayMonthYear)")
        NSLog("hoursFromToday returns: \(hrsFromToday.hoursFromToday)");
        NSLog("minsFromToday returns: \(hrsFromToday.minsFromToday)");
        NSLog("monthsFromToday returns: \(hrsFromToday.monthsFromToday)");
        NSLog("weeksFromToday returns: \(hrsFromToday.weeksFromToday)");
        NSLog("daysFromToday returns: \(hrsFromToday.daysFromToday)");
        NSLog("hoursFromToday returns: \(hrsFromToday.hoursFromToday)");
        NSLog("minsFromToday returns: \(hrsFromToday.minsFromToday)");






        NSLog("relativeDateString returns: \(hrsFromToday.relativeDateString(capitalizeFirst:true))")

        var minsFromToday = today.xMins(mins)
        NSLog("**  \(mins) minutes from today: \(minsFromToday.timeDayMonthYear)")
        NSLog("minsFromToday returns: \(minsFromToday.minsFromToday)");
        NSLog("monthsFromToday returns: \(minsFromToday.monthsFromToday)");
        NSLog("weeksFromToday returns: \(minsFromToday.weeksFromToday)");
        NSLog("daysFromToday returns: \(minsFromToday.daysFromToday)");
        NSLog("hoursFromToday returns: \(minsFromToday.hoursFromToday)");
        NSLog("minsFromToday returns: \(minsFromToday.minsFromToday)");


        NSLog("relativeDateString returns: \(minsFromToday.relativeDateString())")




        NSLog("__________________ End Testing of NSDate    _________________________")

    }
}
2
Jitendra Kulkarni

「calendar」（NSCalendarオブジェクト）と呼ばれる別の変数を作成し、init「currentCalendar」メソッドを使用する必要があります。カレンダーオブジェクトを定義したら、calendar rangeOfUnit：NSWeekCalendarUnit inUnit：NSMonthCalendarUnit forDate：dateの下のメソッドを呼び出します。次に、amountOfWeeksというNSIntegerを、上記の関数が返す範囲と等しくします。関数が返す範囲の長さは、その月の週数になります。

1
SierraMike

どちらが必要かはわかりませんが、weekday、weekdayOrdinal、weekOfMonth、weekOfYearがあります。 （weekは非推奨になりました。）

0
Scott Hunter