RelativeTimestamp

RelativeTimestamp is a React component for formatting Unix timestamps in relative time, e.g. Now, 12 days ago, or 1 year ago.

Install

• npm install relative-timestamp or
• yarn add relative-timestamp

Use

import RelativeTimestamp from 'relative-timestamp';

const MY_DATE = new Date(2000, 4, 20);
const MY_TIMESTAMP = MY_DATE.getTime();

// In the year 2021, this will output "21 years ago."
function MyRelativeTimestamp() {
  return <RelativeTimestamp value={MY_TIMESTAMP} />;
}

Supported time units

The RelativeTimestamp component supports now, minutes, hours, days, months, and years.

Seconds are not supported and are instead represented as Now. Rendering timestamps from seconds ago would be too noisy to animate and have too poor of performance to re-render every second. Instead of "X seconds ago" ticking up every second, the component instead renders "Now" and re-renders on the minute mark.

API

children

Type: (unit, count) => ReactNode (optional)

If you want to provide custom internationalization, logic, or styling on your display, you can optionally pass a children prop that accepts the unit and count.

For example,

const MY_DATE = new Date(2000, 4, 20);
const MY_TIMESTAMP = MY_DATE.getTime();

function MyRelativeTimestamp() {
  return (
    <RelativeTimestamp value={MY_TIMESTAMP}>
      {(unit, count) => {
        switch (unit) {
          case 'now':
            return <I18n>now</I18n>;
          case 'days':
          case 'hours':
          case 'minutes':
          case 'months':
          case 'years':
            return <I18n count={count}>{unit}_ago</I18n>;
        }
      }}
    </RelativeTimestamp>
  );
}

value

Type: number (required)

The value prop should be the Unix timestamp that you want to display relatively.

Contributing

• yarn set version latest
• yarn up * @*/*
• yarn add --dev @yarnpkg/pnpify
• yarn pnpify --sdk vscode