ja.js

//! moment.js locale configuration
//! locale : Japanese [ja]
//! author : LI Long : https://github.com/baryon

;(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';

    //! moment.js locale configuration

    var ja = moment.defineLocale('ja', {
        eras: [
            {
                since: '2019-05-01',
                offset: 1,
                name: '令和',
                narrow: '㋿',
                abbr: 'R',
            },
            {
                since: '1989-01-08',
                until: '2019-04-30',
                offset: 1,
                name: '平成',
                narrow: '㍻',
                abbr: 'H',
            },
            {
                since: '1926-12-25',
                until: '1989-01-07',
                offset: 1,
                name: '昭和',
                narrow: '㍼',
                abbr: 'S',
            },
            {
                since: '1912-07-30',
                until: '1926-12-24',
                offset: 1,
                name: '大正',
                narrow: '㍽',
                abbr: 'T',
            },
            {
                since: '1873-01-01',
                until: '1912-07-29',
                offset: 6,
                name: '明治',
                narrow: '㍾',
                abbr: 'M',
            },
            {
                since: '0001-01-01',
                until: '1873-12-31',
                offset: 1,
                name: '西暦',
                narrow: 'AD',
                abbr: 'AD',
            },
            {
                since: '0000-12-31',
                until: -Infinity,
                offset: 1,
                name: '紀元前',
                narrow: 'BC',
                abbr: 'BC',
            },
        ],
        eraYearOrdinalRegex: /(元|\d+)年/,
        eraYearOrdinalParse: function (input, match) {
            return match[1] === '元' ? 1 : parseInt(match[1] || input, 10);
        },
        months: '1月_2月_3月_4月_5月_6月_7月_8月_9月_10月_11月_12月'.split('_'),
        monthsShort: '1月_2月_3月_4月_5月_6月_7月_8月_9月_10月_11月_12月'.split(
            '_'
        ),
        weekdays: '日曜日_月曜日_火曜日_水曜日_木曜日_金曜日_土曜日'.split('_'),
        weekdaysShort: '日_月_火_水_木_金_土'.split('_'),
        weekdaysMin: '日_月_火_水_木_金_土'.split('_'),
        longDateFormat: {
            LT: 'HH:mm',
            LTS: 'HH:mm:ss',
            L: 'YYYY/MM/DD',
            LL: 'YYYY年M月D日',
            LLL: 'YYYY年M月D日 HH:mm',
            LLLL: 'YYYY年M月D日 dddd HH:mm',
            l: 'YYYY/MM/DD',
            ll: 'YYYY年M月D日',
            lll: 'YYYY年M月D日 HH:mm',
            llll: 'YYYY年M月D日(ddd) HH:mm',
        },
        meridiemParse: /午前|午後/i,
        isPM: function (input) {
            return input === '午後';
        },
        meridiem: function (hour, minute, isLower) {
            if (hour < 12) {
                return '午前';
            } else {
                return '午後';
            }
        },
        calendar: {
            sameDay: '[今日] LT',
            nextDay: '[明日] LT',
            nextWeek: function (now) {
                if (now.week() !== this.week()) {
                    return '[来週]dddd LT';
                } else {
                    return 'dddd LT';
                }
            },
            lastDay: '[昨日] LT',
            lastWeek: function (now) {
                if (this.week() !== now.week()) {
                    return '[先週]dddd LT';
                } else {
                    return 'dddd LT';
                }
            },
            sameElse: 'L',
        },
        dayOfMonthOrdinalParse: /\d{1,2}日/,
        ordinal: function (number, period) {
            switch (period) {
                case 'y':
                    return number === 1 ? '元年' : number + '年';
                case 'd':
                case 'D':
                case 'DDD':
                    return number + '日';
                default:
                    return number;
            }
        },
        relativeTime: {
            future: '%s後',
            past: '%s前',
            s: '数秒',
            ss: '%d秒',
            m: '1分',
            mm: '%d分',
            h: '1時間',
            hh: '%d時間',
            d: '1日',
            dd: '%d日',
            M: '1ヶ月',
            MM: '%dヶ月',
            y: '1年',
            yy: '%d年',
        },
    });

    return ja;

})));