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Editing: cs.js

//! moment.js locale configuration

;(function (global, factory) {
   typeof exports === 'object' && typeof module !== 'undefined'
       && typeof require === 'function' ? factory(require('../moment')) :
   typeof define === 'function' && define.amd ? define(['../moment'], factory) :
   factory(global.moment)
}(this, (function (moment) { 'use strict';

var months = 'leden_únor_březen_duben_květen_červen_červenec_srpen_září_říjen_listopad_prosinec'.split('_'),
        monthsShort = 'led_úno_bře_dub_kvě_čvn_čvc_srp_zář_říj_lis_pro'.split('_');
    function plural(n) {
        return (n > 1) && (n < 5) && (~~(n / 10) !== 1);
    }
    function translate(number, withoutSuffix, key, isFuture) {
        var result = number + ' ';
        switch (key) {
            case 's':  // a few seconds / in a few seconds / a few seconds ago
                return (withoutSuffix || isFuture) ? 'pár sekund' : 'pár sekundami';
            case 'ss': // 9 seconds / in 9 seconds / 9 seconds ago
                if (withoutSuffix || isFuture) {
                    return result + (plural(number) ? 'sekundy' : 'sekund');
                } else {
                    return result + 'sekundami';
                }
                break;
            case 'm':  // a minute / in a minute / a minute ago
                return withoutSuffix ? 'minuta' : (isFuture ? 'minutu' : 'minutou');
            case 'mm': // 9 minutes / in 9 minutes / 9 minutes ago
                if (withoutSuffix || isFuture) {
                    return result + (plural(number) ? 'minuty' : 'minut');
                } else {
                    return result + 'minutami';
                }
                break;
            case 'h':  // an hour / in an hour / an hour ago
                return withoutSuffix ? 'hodina' : (isFuture ? 'hodinu' : 'hodinou');
            case 'hh': // 9 hours / in 9 hours / 9 hours ago
                if (withoutSuffix || isFuture) {
                    return result + (plural(number) ? 'hodiny' : 'hodin');
                } else {
                    return result + 'hodinami';
                }
                break;
            case 'd':  // a day / in a day / a day ago
                return (withoutSuffix || isFuture) ? 'den' : 'dnem';
            case 'dd': // 9 days / in 9 days / 9 days ago
                if (withoutSuffix || isFuture) {
                    return result + (plural(number) ? 'dny' : 'dní');
                } else {
                    return result + 'dny';
                }
                break;
            case 'M':  // a month / in a month / a month ago
                return (withoutSuffix || isFuture) ? 'měsíc' : 'měsícem';
            case 'MM': // 9 months / in 9 months / 9 months ago
                if (withoutSuffix || isFuture) {
                    return result + (plural(number) ? 'měsíce' : 'měsíců');
                } else {
                    return result + 'měsíci';
                }
                break;
            case 'y':  // a year / in a year / a year ago
                return (withoutSuffix || isFuture) ? 'rok' : 'rokem';
            case 'yy': // 9 years / in 9 years / 9 years ago
                if (withoutSuffix || isFuture) {
                    return result + (plural(number) ? 'roky' : 'let');
                } else {
                    return result + 'lety';
                }
                break;
        }
    }

var cs = moment.defineLocale('cs', {
        months : months,
        monthsShort : monthsShort,
        monthsParse : (function (months, monthsShort) {
            var i, _monthsParse = [];
            for (i = 0; i < 12; i++) {
                // use custom parser to solve problem with July (červenec)
                _monthsParse[i] = new RegExp('^' + months[i] + '$|^' + monthsShort[i] + '$', 'i');
            }
            return _monthsParse;
        }(months, monthsShort)),
        shortMonthsParse : (function (monthsShort) {
            var i, _shortMonthsParse = [];
            for (i = 0; i < 12; i++) {
                _shortMonthsParse[i] = new RegExp('^' + monthsShort[i] + '$', 'i');
            }
            return _shortMonthsParse;
        }(monthsShort)),
        longMonthsParse : (function (months) {
            var i, _longMonthsParse = [];
            for (i = 0; i < 12; i++) {
                _longMonthsParse[i] = new RegExp('^' + months[i] + '$', 'i');
            }
            return _longMonthsParse;
        }(months)),
        weekdays : 'neděle_pondělí_úterý_středa_čtvrtek_pátek_sobota'.split('_'),
        weekdaysShort : 'ne_po_út_st_čt_pá_so'.split('_'),
        weekdaysMin : 'ne_po_út_st_čt_pá_so'.split('_'),
        longDateFormat : {
            LT: 'H:mm',
            LTS : 'H:mm:ss',
            L : 'DD.MM.YYYY',
            LL : 'D. MMMM YYYY',
            LLL : 'D. MMMM YYYY H:mm',
            LLLL : 'dddd D. MMMM YYYY H:mm',
            l : 'D. M. YYYY'
        },
        calendar : {
            sameDay: '[dnes v] LT',
            nextDay: '[zítra v] LT',
            nextWeek: function () {
                switch (this.day()) {
                    case 0:
                        return '[v neděli v] LT';
                    case 1:
                    case 2:
                        return '[v] dddd [v] LT';
                    case 3:
                        return '[ve středu v] LT';
                    case 4:
                        return '[ve čtvrtek v] LT';
                    case 5:
                        return '[v pátek v] LT';
                    case 6:
                        return '[v sobotu v] LT';
                }
            },
            lastDay: '[včera v] LT',
            lastWeek: function () {
                switch (this.day()) {
                    case 0:
                        return '[minulou neděli v] LT';
                    case 1:
                    case 2:
                        return '[minulé] dddd [v] LT';
                    case 3:
                        return '[minulou středu v] LT';
                    case 4:
                    case 5:
                        return '[minulý] dddd [v] LT';
                    case 6:
                        return '[minulou sobotu v] LT';
                }
            },
            sameElse: 'L'
        },
        relativeTime : {
            future : 'za %s',
            past : 'před %s',
            s : translate,
            ss : translate,
            m : translate,
            mm : translate,
            h : translate,
            hh : translate,
            d : translate,
            dd : translate,
            M : translate,
            MM : translate,
            y : translate,
            yy : translate
        },
        dayOfMonthOrdinalParse : /\d{1,2}\./,
        ordinal : '%d.',
        week : {
            dow : 1, // Monday is the first day of the week.
            doy : 4  // The week that contains Jan 4th is the first week of the year.
        }
    });

return cs;

})));