Relative Time

<sl-relative-time> | SlRelativeTime

Outputs a localized time phrase relative to the current date and time.

Examples

Relative Time Basics

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>

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

import SlRelativeTime from '@teamshares/shoelace/dist/react/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.

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.

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>

div.relative-time-sync
  sl-relative-time sync="true"

javascript:
  const container = document.querySelector(.relative-time-sync);
  const relativeTime = container.querySelector(sl-relative-time);

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

import SlRelativeTime from '@teamshares/shoelace/dist/react/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>

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

import SlRelativeTime from '@teamshares/shoelace/dist/react/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:
Chinese:
German:
Greek:
Russian:

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>

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

import SlRelativeTime from '@teamshares/shoelace/dist/react/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" />
  </>
);

Component Props

Property	Default	Details
`date`	`new Date()`	`Date \| string` The date from which to calculate time from. If not set, the current date and time will be used. When passing a string, it’s strongly recommended to use the ISO 8601 format to ensure timezones are handled correctly. To convert a date to this format in JavaScript, use `date.toISOString()`.
`format`	`'long'`	`'long' \| 'short' \| 'narrow'` The formatting style to use.
`numeric`	`'auto'`	`'always' \| 'auto'` When `auto`, values such as “yesterday” and “tomorrow” will be shown when possible. When `always`, values such as “1 day ago” and “in 1 day” will be shown.
`sync`	`false`	`boolean` Keep the displayed value up to date as time passes.
`updateComplete`		A read-only promise that resolves when the component has finished updating.

Learn more about attributes and properties.