import { OnDestroy, PipeTransform } from '@angular/core';
import * as i0 from "@angular/core";
export declare class ZonedTimeToUtcPipe implements PipeTransform, OnDestroy {
    private service;
    private cdr;
    private cleanup;
    transform(date: Date | string | number, tz?: string | null): Date;
    ngOnDestroy(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<ZonedTimeToUtcPipe, never>;
    static ɵpipe: i0.ɵɵPipeDeclaration<ZonedTimeToUtcPipe, "dfnsZonedTimeToUtc", true>;
}