!(function (t, e) {
    if ('object' == typeof exports && 'undefined' != typeof module) {
        module.exports = e();
    } else {
        if ('function' == typeof define && define.amd) {
            define(e);
        } else {
            (t = 'undefined' != typeof globalThis ? globalThis : t || self).dayjs_plugin_timezone = e();
        }
    }
})(this, function () {
    'use strict';

    var t = {
        year: 0,
        month: 1,
        day: 2,
        hour: 3,
        minute: 4,
        second: 5
    };
    var e = {};
    return function (n, i, o) {
        var r;
        var a = function (t, n, i) {
            if (void 0 === i) {
                i = {};
            }
            var o = new Date(t);
            var r = (function (t, n) {
                if (void 0 === n) {
                    n = {};
                }
                var i = n.timeZoneName || 'short';
                var o = t + '|' + i;
                var r = e[o];
                r ||
                    ((r = new Intl.DateTimeFormat('en-US', {
                        hour12: false,
                        timeZone: t,
                        year: 'numeric',
                        month: '2-digit',
                        day: '2-digit',
                        hour: '2-digit',
                        minute: '2-digit',
                        second: '2-digit',
                        timeZoneName: i
                    })),
                    (e[o] = r));
                return r;
            })(n, i);
            return r.formatToParts(o);
        };
        var u = function (e, n) {
            for (var i = a(e, n), r = [], u = 0; u < i.length; u += 1) {
                var f = i[u];
                var s = f.type;
                var m = f.value;
                var c = t[s];
                if (c >= 0) {
                    r[c] = parseInt(m, 10);
                }
            }
            var d = r[3];
            var l = 24 === d ? 0 : d;
            var v = r[0] + '-' + r[1] + '-' + r[2] + ' ' + l + ':' + r[4] + ':' + r[5] + ':000';
            var h = +e;
            return (o.utc(v).valueOf() - (h -= h % 1000)) / 60000;
        };
        var f = i.prototype;
        f.tz = function (t, e) {
            if (void 0 === t) {
                t = r;
            }
            var n = this.utcOffset();
            var i = this.toDate();
            var a = i.toLocaleString('en-US', {
                timeZone: t
            });
            var u = Math.round((i - new Date(a)) / 1000 / 60);
            var f = o(a)
                .$set('millisecond', this.$ms)
                .utcOffset(15 * -Math.round(i.getTimezoneOffset() / 15) - u, true);
            if (e) {
                var s = f.utcOffset();
                f = f.add(n - s, 'minute');
            }
            f.$x.$timezone = t;
            return f;
        };
        f.offsetName = function (t) {
            var e = this.$x.$timezone || o.tz.guess();
            var n = a(this.valueOf(), e, {
                timeZoneName: t
            }).find(function (t) {
                return 'timezonename' === t.type.toLowerCase();
            });
            return n && n.value;
        };
        var s = f.startOf;
        f.startOf = function (t, e) {
            if (!this.$x || !this.$x.$timezone) {
                return s.call(this, t, e);
            }
            var n = o(this.format('YYYY-MM-DD HH:mm:ss:SSS'));
            return s.call(n, t, e).tz(this.$x.$timezone, true);
        };
        o.tz = function (t, e, n) {
            var i = n && e;
            var a = n || e || r;
            var f = u(+o(), a);
            if ('string' != typeof t) {
                return o(t).tz(a);
            }
            var s = (function (t, e, n) {
                var i = t - 60 * e * 1000;
                var o = u(i, n);
                if (e === o) {
                    return [i, e];
                }
                var r = u((i -= 60 * (o - e) * 1000), n);
                return o === r ? [i, o] : [t - 60 * Math.min(o, r) * 1000, Math.max(o, r)];
            })(o.utc(t, i).valueOf(), f, a);
            var m = s[0];
            var c = s[1];
            var d = o(m).utcOffset(c);
            d.$x.$timezone = a;
            return d;
        };
        o.tz.guess = function () {
            return Intl.DateTimeFormat().resolvedOptions().timeZone;
        };
        o.tz.setDefault = function (t) {
            r = t;
        };
    };
});