(function($) {
    var cultures = $.cultures,
        en = cultures.en,
        standard = en.calendars.standard,
        culture = cultures["ur-PK"] = $.extend(true, {}, en, {
        name: "ur-PK",
        englishName: "Urdu (Islamic Republic of Pakistan)",
        nativeName: "اُردو (پاکستان)",
        language: "ur",
        isRTL: true,
        numberFormat: {
            currency: {
                pattern: ["$n-","$n"],
                symbol: "Rs"
            }
        },
        calendars: {
            standard: $.extend(true, {}, standard, {
                firstDay: 1,
                days: {
                    names: ["اتوار","پير","منگل","بدھ","جمعرات","جمعه","هفته"],
                    namesAbbr: ["اتوار","پير","منگل","بدھ","جمعرات","جمعه","هفته"],
                    namesShort: ["ا","پ","م","ب","ج","ج","ه"]
                },
                months: {
                    names: ["جنوری","فروری","مارچ","اپریل","مئی","جون","جولائی","اگست","ستمبر","اکتوبر","نومبر","دسمبر",""],
                    namesAbbr: ["جنوری","فروری","مارچ","اپریل","مئی","جون","جولائی","اگست","ستمبر","اکتوبر","نومبر","دسمبر",""]
                },
                patterns: {
                    d: "dd/MM/yyyy",
                    D: "dd MMMM, yyyy",
                    f: "dd MMMM, yyyy h:mm tt",
                    F: "dd MMMM, yyyy h:mm:ss tt",
                    M: "dd MMMM"
                }
            }),
            Hijri: $.extend(true, {}, standard, {
                name: "Hijri",
                firstDay: 1,
                days: {
                    names: ["الأحد","الإثنين","الثلاثاء","الأربعاء","الخميس","الجمعة","السبت"],
                    namesAbbr: ["الأحد","الإثنين","الثلاثاء","الأربعاء","الخميس","الجمعة","السبت"],
                    namesShort: ["ح","ن","ث","ر","خ","ج","س"]
                },
                months: {
                    names: ["محرم","صفر","ربيع الأول","ربيع الثاني","جمادى الأولى","جمادى الثانية","رجب","شعبان","رمضان","شوال","ذو القعدة","ذو الحجة",""],
                    namesAbbr: ["محرم","صفر","ربيع الأول","ربيع الثاني","جمادى الأولى","جمادى الثانية","رجب","شعبان","رمضان","شوال","ذو القعدة","ذو الحجة",""]
                },
                eras: [{"name":"بعد الهجرة","start":null,"offset":0}],
                twoDigitYearMax: 1451,
                patterns: {
                    d: "dd/MM/yy",
                    D: "dd/MM/yyyy",
                    f: "dd/MM/yyyy h:mm tt",
                    F: "dd/MM/yyyy h:mm:ss tt",
                    M: "dd MMMM"
                },
                convert: {
                    // Adapted to Script from System.Globalization.HijriCalendar
                    ticks1970: 62135596800000,
                    // number of days leading up to each month
                    monthDays: [0, 30, 59, 89, 118, 148, 177, 207, 236, 266, 295, 325, 355],
                    minDate: -42521673600000,
                    maxDate: 253402300799999,
                    // The number of days to add or subtract from the calendar to accommodate the variances
                    // in the start and the end of Ramadan and to accommodate the date difference between
                    // countries/regions. May be dynamically adjusted based on user preference, but should
                    // remain in the range of -2 to 2, inclusive.
                    hijriAdjustment: 0,
                    toGregorian: function(hyear, hmonth, hday) {
                        var daysSinceJan0101 = this.daysToYear(hyear) + this.monthDays[hmonth] + hday - 1 - this.hijriAdjustment;
                        // 86400000 = ticks per day
                        var gdate = new Date(daysSinceJan0101 * 86400000 - this.ticks1970);
                        // adjust for timezone, because we are interested in the gregorian date for the same timezone
                        // but ticks in javascript is always from GMT, unlike the server were ticks counts from the base
                        // date in the current timezone.
                        gdate.setMinutes(gdate.getMinutes() + gdate.getTimezoneOffset());
                        return gdate;
                    },
                    fromGregorian: function(gdate) {
                        if ((gdate < this.minDate) || (gdate > this.maxDate)) return null;
                        var ticks = this.ticks1970 + (gdate-0) - gdate.getTimezoneOffset() * 60000,
                            daysSinceJan0101 = Math.floor(ticks / 86400000) + 1 + this.hijriAdjustment;
                        // very particular formula determined by someone smart, adapted from the server-side implementation.
                        // it approximates the hijri year.
                        var hday, hmonth, hyear = Math.floor(((daysSinceJan0101 - 227013) * 30) / 10631) + 1,
                            absDays = this.daysToYear(hyear),
                            daysInYear = this.isLeapYear(hyear) ? 355 : 354;
                        // hyear is just approximate, it may need adjustment up or down by 1.
                        if (daysSinceJan0101 < absDays) {
                            hyear--;
                            absDays -= daysInYear;
                        }
                        else if (daysSinceJan0101 === absDays) {
                            hyear--;
                            absDays = this.daysToYear(hyear);
                        }
                        else {
                            if (daysSinceJan0101 > (absDays + daysInYear)) {
                                absDays += daysInYear;
                                hyear++;
                            }
                        }
                        // determine month by looking at how many days into the hyear we are
                        // monthDays contains the number of days up to each month.
                        hmonth = 0;
                        var daysIntoYear = daysSinceJan0101 - absDays;
                        while (hmonth <= 11 && daysIntoYear > this.monthDays[hmonth]) {
                            hmonth++;
                        }
                        hmonth--;
                        hday = daysIntoYear - this.monthDays[hmonth];
                        return [hyear, hmonth, hday];
                    },
                    daysToYear: function(year) {
                        // calculates how many days since Jan 1, 0001
                        var yearsToYear30 = Math.floor((year - 1) / 30) * 30,
                            yearsInto30 = year - yearsToYear30 - 1,
                            days = Math.floor((yearsToYear30 * 10631) / 30) + 227013;
                        while (yearsInto30 > 0) {
                            days += (this.isLeapYear(yearsInto30) ? 355 : 354);
                            yearsInto30--;
                        }
                        return days;
                    },
                    isLeapYear: function(year) {
                        return ((((year * 11) + 14) % 30) < 11);
                    }
                }
            })
        }
    }, cultures["ur-PK"]);
    culture.calendar = culture.calendars.standard;
})(jQuery);