accounts-frontend/src/components/ui/RelativeTime.js

// @flow
import React from 'react';
import { FormattedRelativeTime } from 'react-intl';
import { selectUnit } from '@formatjs/intl-utils';

function RelativeTime({timestamp}: {timestamp: number}) {
    const {unit, value}: {unit: any, value: number} = selectUnit(timestamp);

    return (
        <FormattedRelativeTime
            value={value}
            unit={unit}
            numeric="auto"
            updateIntervalInSeconds={['seconds', 'minute', 'hour'].includes(unit) ? 1 : undefined}
        />
    );
}

export default RelativeTime;