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Format Date

<pc-format-date> 1.0.0-alpha.1 experimental

Formats a date/time using the specified locale and options.

Localisation is handled by the browser’s Intl.DateTimeFormat API. No language packs are required.

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The date attribute determines the date/time to use when formatting. It must be a string that Date.parse() can interpret or a Date object set via JavaScript. If omitted, the current date/time will be assumed.

When using strings, avoid ambiguous dates such as 03/04/2024, which can be interpreted as 4 March 2024 or 3 April 2024 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.

Demos

Date and time formatting

Formatting options are based on those found in the Intl.DateTimeFormat API. When formatting options are provided, the date/time will be formatted according to those values. When no formatting options are provided, a localised, numeric date will be displayed instead.

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Hour formatting

By default, the browser will determine whether to use 12‐hour or 24‐hour time. To force one or the other, set the hour-format attribute to 12 or 24.

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Localisation

Use the lang attribute to set the date/time formatting locale.

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Properties

NameDescriptionReflectsDefault
dateThe date/time to format. 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().
Type: Date | string
new Date()
weekdayThe format for displaying the weekday.
Type: "narrow" | "short" | "long" | undefined
eraThe format for displaying the era.
Type: "narrow" | "short" | "long" | undefined
yearThe format for displaying the year.
Type: "numeric" | "2-digit" | undefined
monthThe format for displaying the month.
Type: "numeric" | "2-digit" | "narrow" | "short" | "long" | undefined
dayThe format for displaying the day.
Type: "numeric" | "2-digit" | undefined
hourThe format for displaying the hour.
Type: "numeric" | "2-digit" | undefined
minuteThe format for displaying the minute.
Type: "numeric" | "2-digit" | undefined
secondThe format for displaying the second.
Type: "numeric" | "2-digit" | undefined
timeZoneName
time-zone-name
The format for displaying the time.
Type: "short" | "long" | undefined
timeZone
time-zone
The time zone to express the time in.
Type: string | undefined
hourFormat
hour-format
The format for displaying the hour.
Type: "auto" | "12" | "24"
"auto"
updateComplete A read‐only promise that resolves when the component has finished updating.

Learn more about customising animations.

Importing

If you’re using the autoloader or the standard loader, you can skip this section. But if you’re cherry picking, you can use any of the following snippets to import this component.

CDN (script tag)CDN (import)npm (import)

To manually import this component from the CDN, copy this code snippet and paste it in your HTML.

<script type="module" src="https://cdn.jsdelivr.net/npm/placer-toolkit@1.0.0-alpha.3/cdn/components/format-date/format-date.js"></script>

To manually import this component from the CDN, copy this code snippet and paste it in your JavaScript file.

import "https://cdn.jsdelivr.net/npm/placer-toolkit@1.0.0-alpha.3/cdn/components/format-date/format-date.js";

To manually import this component from npm, copy this code snippet and paste it in your JavaScript file.

import "placer-toolkit/dist/components/format-date/format-date.js";

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