export type DateInput = Date | number | string;
declare function _parseUTC(input: DateInput): Date;
export declare const utc: typeof _parseUTC & {
    /** Parse and return normalized ISO string with Z */
    iso(input: DateInput): string;
    /** Parse and return UTC date-only string "YYYY-MM-DD" */
    date(input: DateInput): string;
    /** Parse and return epoch ms */
    ms(input: DateInput): number;
};
export declare const local: {
    /** Format a Date as ISO string with local TZ offset, e.g. "2026-05-05T11:00:00.000+03:00" */
    iso(date?: Date): string;
    /** Current device TZ offset string, e.g. "+03:00" or "-05:00" */
    offset(date?: Date): string;
};
export type TimeDeltaUnit = 'days' | 'hours' | 'minutes' | 'seconds' | 'weeks' | 'months' | 'years';
export interface TimeDeltaOptions {
    days?: number;
    hours?: number;
    minutes?: number;
    seconds?: number;
    weeks?: number;
    months?: number;
    years?: number;
}
export type DateDiffUnit = 'seconds' | 'minutes' | 'hours' | 'days' | 'weeks' | 'months';
export type DayFormatTypes = 'DD' | 'DDD' | 'DDDD';
export type MonthFormatTypes = 'MM' | 'MMM' | 'MMMM';
export type YearFormatTypes = 'YY' | 'YYYY';
export type HourFormatTypes = 'HH';
export type MinuteFormatTypes = 'mm';
export type SecondFormatTypes = 'ss';
export type MillisecondFormatTypes = 'sss';
export type AmPmFormatTypes = 'AmPm';
export type DateFormatSeparatorTypes = '/' | '-' | ' ' | ':' | '.';
export type CommonDateFormats = `${DayFormatTypes}${DateFormatSeparatorTypes}${MonthFormatTypes}${DateFormatSeparatorTypes}${YearFormatTypes}` | `${MonthFormatTypes}${DateFormatSeparatorTypes}${YearFormatTypes}` | 'DD.MM.YY' | 'DD.MM.YYYY' | 'DD/MM/YY' | 'DD/MM/YYYY' | 'MM.DD.YY' | 'MM.DD.YYYY' | 'MM/DD/YY' | 'MM/DD/YYYY' | 'YYYY-MM-DD' | 'YY-MM-DD' | 'DD MMM YYYY' | 'DD MMMM YYYY' | 'DDD, DD MMM' | 'DDDD, DD MMMM' | 'MMM DD' | 'MMMM DD';
export type CommonTimeFormats = 'HH:mm' | 'HH:mm:ss' | 'HH:mm:ss:sss' | 'HH:mm AmPm';
export type CommonDateTimeFormats = `${CommonDateFormats} ${CommonTimeFormats}` | `${CommonTimeFormats}, ${CommonDateFormats}` | 'YYYY-MM-DD HH:MM';
export type NamedFormats = 'ISO' | 'ISO8601' | 'UTC' | 'RFC2822' | 'RFC3339' | 'UNIX' | 'TIMESTAMP';
export type DateTimeAcceptedFormats = CommonDateFormats | CommonTimeFormats | CommonDateTimeFormats | DayFormatTypes | MonthFormatTypes | YearFormatTypes | HourFormatTypes | MinuteFormatTypes | SecondFormatTypes | MillisecondFormatTypes | NamedFormats;
export interface FormatDateOptions extends Partial<Pick<Intl.DateTimeFormatOptions, 'hour12'>> {
    format?: DateTimeAcceptedFormats;
    locale?: Intl.LocalesArgument;
    tz?: string;
}
export declare const MS: {
    readonly SECOND: 1000;
    readonly MINUTE: 60000;
    readonly HOUR: 3600000;
    readonly DAY: 86400000;
    readonly WEEK: 604800000;
};
export declare const SECOND: 1000;
export declare const MINUTE: 60000;
export declare const HOUR: 3600000;
export declare const DAY: 86400000;
export declare const WEEK: 604800000;
export declare function timeDelta(date: DateInput, options: TimeDeltaOptions): Date;
export declare function dateDiff(a: DateInput, b: DateInput, unit?: DateDiffUnit): number;
export declare class DateChain {
    private _date;
    constructor(date: DateInput);
    add(n: number, unit?: TimeDeltaUnit): DateChain;
    subtract(n: number, unit?: TimeDeltaUnit): DateChain;
    diff(other: DateInput, unit?: DateDiffUnit): number;
    isBefore(other: DateInput): boolean;
    isAfter(other: DateInput): boolean;
    isSameDay(other: DateInput): boolean;
    toDate(): Date;
    valueOf(): number;
    toString(): string;
}
declare function _d(date?: DateInput): DateChain;
export declare const d: typeof _d & {
    readonly now: DateChain;
    readonly today: DateChain;
    readonly tomorrow: DateChain;
    readonly yesterday: DateChain;
    readonly nextWeek: DateChain;
    readonly lastWeek: DateChain;
    readonly firstOfMonth: DateChain;
    readonly lastOfMonth: DateChain;
    readonly firstOfWeek: DateChain;
    readonly lastOfWeek: DateChain;
    readonly firstOfNextMonth: DateChain;
    readonly lastOfNextMonth: DateChain;
    readonly firstOfNextYear: DateChain;
    in: (n: number, unit?: TimeDeltaUnit) => DateChain;
    ago: (n: number, unit?: TimeDeltaUnit) => DateChain;
    diff: (a: DateInput, b: DateInput, unit?: DateDiffUnit) => number;
    isBefore: (a: DateInput, b: DateInput) => boolean;
    isAfter: (a: DateInput, b: DateInput) => boolean;
    isSameDay: (a: DateInput, b: DateInput) => boolean;
};
export declare function handleTimezone(date: Date, intFmtOpt: Intl.DateTimeFormatOptions): Date;
export declare function getDatePartsMap(date: Date, locale: Intl.LocalesArgument, intFmtOpt?: Intl.DateTimeFormatOptions): {
    AmPm: string;
    DD: string;
    DDD: string;
    DDDD: string;
    HH: string;
    mm: string;
    MM: string;
    MMM: string;
    MMMM: string;
    ss: string;
    sss: string;
    YY: string;
    YYYY: string;
};
export declare function formatDate(date?: DateInput, format?: DateTimeAcceptedFormats): string;
export declare function formatDate(date?: DateInput, opts?: FormatDateOptions): string;
export declare const fmtDate: typeof formatDate;
export {};
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