import { Timezone } from "./timezones";
export interface DateFieldSelection {
    get displayHours(): boolean;
    get displayMinutes(): boolean;
    get displaySeconds(): boolean;
    get displayMilliseconds(): boolean;
    get displayMicroseconds(): boolean;
    get displayDate(): boolean;
    get displayMonth(): boolean;
    get displayYear(): boolean;
    get displayTimezone(): boolean;
}
export declare function maxDay(year: number | null, month: number | null): number;
export declare function getUserTimezone(): Timezone | null;
export declare class PhpDate {
    date: string;
    month: string;
    year: string;
    hours: string;
    minutes: string;
    seconds: string;
    microseconds: string;
    timezone?: Timezone;
    private _date;
    private prevDate;
    private _month;
    private prevMonth;
    private _year;
    private prevYear;
    private _hours;
    private prevHours;
    private _minutes;
    private prevMinutes;
    private _seconds;
    private prevSeconds;
    private _microseconds;
    private prevMicroseconds;
    constructor(date: string, month: string, year: string, hours: string, minutes: string, seconds: string, microseconds: string, timezone?: Timezone | string);
    private resolveNumberValue;
    get resolvedYear(): number | null;
    get resolvedMonth(): number | null;
    get resolvedDate(): number | null;
    get resolvedHours(): number | null;
    get resolvedMinutes(): number | null;
    get resolvedSeconds(): number | null;
    get timezoneOffset(): string;
    get resolvedMicroseconds(): number | null;
    toDate(): Date;
    static createFromDate(d?: Date): PhpDate;
    get dayOfWeek(): number | null;
    get milliseconds(): string;
    set milliseconds(val: string);
    getValidFields(): Record<string, boolean>;
    isValid(selection: DateFieldSelection): boolean;
}