webawesome/docs/pages/components/relative-time.md

meta, layout

meta	layout
title description Relative Time Outputs a localized time phrase relative to the current date and time.	component

Localization is handled by the browser's Intl.RelativeTimeFormat API. No language packs are required.

<!-- Shoelace 2 release date 🎉 -->
<sl-relative-time date="2020-07-15T09:17:00-04:00"></sl-relative-time>

import SlRelativeTime from '@shoelace-style/shoelace/dist/react/sl-relative-time';

const App = () => <SlRelativeTime date="2020-07-15T09:17:00-04:00" />;

The date attribute determines when the date/time is calculated from. It must be a string that Date.parse() can interpret or a Date object set via JavaScript.

:::tip When using strings, avoid ambiguous dates such as 03/04/2020 which can be interpreted as March 4 or April 3 depending on the user's browser and locale. Instead, always use a valid ISO 8601 date time string to ensure the date will be parsed properly by all clients. :::

Examples

Keeping Time in Sync

Use the sync attribute to update the displayed value automatically as time passes.

<div class="relative-time-sync">
  <sl-relative-time sync></sl-relative-time>
</div>

<script>
  const container = document.querySelector('.relative-time-sync');
  const relativeTime = container.querySelector('sl-relative-time');

  relativeTime.date = new Date(new Date().getTime() - 60000);
</script>

import SlRelativeTime from '@shoelace-style/shoelace/dist/react/sl-relative-time';

const date = new Date(new Date().getTime() - 60000);

const App = () => <SlRelativeTime date={date} sync />;

Formatting Styles

You can change how the time is displayed using the format attribute. Note that some locales may display the same values for narrow and short formats.

<sl-relative-time date="2020-07-15T09:17:00-04:00" format="narrow"></sl-relative-time><br />
<sl-relative-time date="2020-07-15T09:17:00-04:00" format="short"></sl-relative-time><br />
<sl-relative-time date="2020-07-15T09:17:00-04:00" format="long"></sl-relative-time>

import SlRelativeTime from '@shoelace-style/shoelace/dist/react/sl-relative-time';

const App = () => (
  <>
    <SlRelativeTime date="2020-07-15T09:17:00-04:00" format="narrow" />
    <br />
    <SlRelativeTime date="2020-07-15T09:17:00-04:00" format="short" />
    <br />
    <SlRelativeTime date="2020-07-15T09:17:00-04:00" format="long" />
  </>
);

Localization

Use the lang attribute to set the desired locale.

English: <sl-relative-time date="2020-07-15T09:17:00-04:00" lang="en-US"></sl-relative-time><br />
Chinese: <sl-relative-time date="2020-07-15T09:17:00-04:00" lang="zh-CN"></sl-relative-time><br />
German: <sl-relative-time date="2020-07-15T09:17:00-04:00" lang="de"></sl-relative-time><br />
Greek: <sl-relative-time date="2020-07-15T09:17:00-04:00" lang="el"></sl-relative-time><br />
Russian: <sl-relative-time date="2020-07-15T09:17:00-04:00" lang="ru"></sl-relative-time>

import SlRelativeTime from '@shoelace-style/shoelace/dist/react/sl-relative-time';

const App = () => (
  <>
    English: <SlRelativeTime date="2020-07-15T09:17:00-04:00" lang="en-US" />
    <br />
    Chinese: <SlRelativeTime date="2020-07-15T09:17:00-04:00" lang="zh-CN" />
    <br />
    German: <SlRelativeTime date="2020-07-15T09:17:00-04:00" lang="de" />
    <br />
    Greek: <SlRelativeTime date="2020-07-15T09:17:00-04:00" lang="el" />
    <br />
    Russian: <SlRelativeTime date="2020-07-15T09:17:00-04:00" lang="ru" />
  </>
);