setInterval in pipes

Hi all,

I need to update a pipe regularly as “fromNow” changes constantly:

export class MomentTillEndPipe implements PipeTransform
    transform (value: string)
        setInterval(() => {
            let m =  moment(value).fromNow(true);
            return m;

The correct - and updated value - is visible in the console, but it is not displayed in my view at all.
Does anyone have a clue why? Is there any other way to solve the issue?

Thanks for you help!