npm i moment --save

import { Pipe, PipeTransform } from '@angular/core';

import Moment from 'moment';

@Pipe({

  name: 'moment',

})

export class MomentPipe implements PipeTransform {

  transform(value: Date | Moment.Moment | string, ...args) {

    Moment.lang('zh-cn');

    let fromNow = Moment(value).fromNow();

    return fromNow;

  }

}