@hebcal/hdate/dist/esm/gregNamespace.d.ts

converts between Hebrew and Gregorian dates using Rata Die (R.D.) algorithm by Dershowitz and Reingold

/**
 * Gregorian date helper functions
 */
export declare namespace greg {
    function abs2greg(abs: number): Date;
    function daysInMonth(month: number, year: number): number;
    function greg2abs(date: Date): number;
    function isDate(obj: unknown): boolean;
    function isLeapYear(year: number): boolean;
}