import { InjectionToken } from '@angular/core';
export declare const NZ_DATE_CONFIG: InjectionToken<NzDateConfig>;
export declare const NZ_DATE_CONFIG_DEFAULT: NzDateConfig;
export declare function mergeDateConfig(config: NzDateConfig): NzDateConfig;
export interface NzDateConfig {
    /** Customize the first day of a week */
    firstDayOfWeek?: 0 | 1 | 2 | 3 | 4 | 5 | 6;
}