import { Dayjs, ManipulateType, OpUnitType } from 'dayjs';
export declare const dateFormat: (date: string | Dayjs, format: string, locale?: string) => string;
export declare const dateDE: (date: string | Dayjs) => string;
export declare const toDate: (date: string) => Dayjs;
export declare const dateAdd: (date: string | Dayjs, unit: ManipulateType, value: number) => Dayjs;
export declare const startOf: (date: string | Dayjs, unit: OpUnitType) => Dayjs;
export declare const getAge: (birthDateStr: string) => number;
export declare const getAgeFrom: (birthDateStr: string, from: string) => number;