h-event

<entry-title>h-event</entry-title> Tantek Çelik (Editor)

---

h-event is a simple, open format for publishing events on the web. h-event is one of several open microformat draft standards suitable for embedding data in HTML/HTML5.

h-event is the microformats2 update to hCalendar.

Example

Here is a simple event example:

<div class="h-event">
  <h1 class="p-name">Microformats Meetup</h1>
  <p>From 
    <time class="dt-start" datetime="2013-06-30 12:00">30<sup>th</sup> June 2013, 12:00</time>
    to <time class="dt-end" datetime="2013-06-30 18:00">18:00</time>
    at <span class="p-location">Some bar in SF</span></p>
  <p class="p-summary">Get together and discuss all things microformats-related.</p>
</div>

Get started

The class h-event is a root class name that indicates the presence of an h-event.

p-name, dt-start, dt-end, p-location, p-summary, and the other h-event property class names listed below define properties of the h-event.

See microformats2-parsing to learn more about property class names.

Properties

h-event properties, inside an element with class h-event:

• p-name - event name (or title)
• p-summary - short summary of the event
• dt-start - datetime the event starts
• dt-end - datetime the event ends
• dt-duration - duration of the event
• p-description - more detailed description of the event
• u-url - permalink for the event
• p-category - event category(ies)/tag(s)
• p-location - where the event takes place, optionally embedded h-adr or h-card
  Main article: h-adr
  Main article: h-card
• p-geo - geophysical coordinates of the event, optionally embedded h-geo
  Main article: h-geo
• p-latitude - decimal latitude
• p-longitude - decimal longitude

Experimental properties currently in use in the wild but not (yet) part of the official h-entry spec:

• p-attendee - a person attending the event, optionally embed h-card
  Main article: h-card

All properties are optional.

Status

h-event is a microformats.org draft specification. Public discussion on h-event takes place on h-event-feedback, the #microformats irc channel on irc.freenode.net, and microformats-new mailing list.

h-event is ready to use and implemented in the wild, but for backwards compatibility you should also mark h-events up as classic hCalendar events.

Property Details

(stub, to be expanded)

p-location is typically a physical address, optionally marked up with h-adr, for example:

<p class="p-adr h-adr">
  <span class="p-street-address">17 Austerstræti</span>
  <span class="p-locality">Reykjavík</span>
  <span class="p-country-name">Iceland</span>
</p>

hCalendar-specific implementations that perform custom display or translation (e.g. to iCalendar .ics) SHOULD prefer p-name over p-summary, and use p-summary value(s) as a fallback if there is no p-name.

Reserved properties:

• p-organizer - a person (co-)organizing the event, optionally embed h-card
  Main article: h-card

Examples in the wild

Real world in the wild examples:

• ... add uses of h-event you see in the wild here.
• W3Conf 2013 uses h-event for the main event, and h-card for all the speakers and notable attendees. The h-cards make particularly good use of implied name, url, and photo properties.
• Tantek Çelik uses h-event on his home page
• microformats.org at 7 years presentation with h-event
• Rise of the Indie Web hCards (from Personal Democracy Forum 2012 #pdf12 #pdf2012) has microformats2 h-event and h-card markup
• WebMaker by Mozilla has h-event and h-card on event search (e.g. search near Portland Oregon) and event pages (e.g. IndieWebCamp 2012).[1]
• IndieWebCamp has microformats2 h-event markup with embedded h-cards for the organizers and the location.
• Mozilla Events page has microformats2 h-event markup with attendees marked up with h-card.

See microformats2 examples in the wild for more

Main article: validators

Test and validate microformats2 markup in general with:

• https://pin13.net/mf2/ - enter your markup directly
• https://pin13.net/ - enter a URL to a page to test where it says "Microformats Parser"

Backward Compatibility

Publisher Compatibility

For backward compatibility, you may wish to use classic hCalendar classnames in addition to the more future-proof h-event properties, for example:

<div class="h-event vevent">
  <h1 class="p-name summary">Some great event</h1>
</div>
</div>

Parser Compatibility

Microformats parsers SHOULD detect the following root class name and property names. A microformats2 parser may use existing microformats parsers to extract these properties. If an "h-event" is found, don't look for a "vevent" on the same element.

Compat root class name: vevent
Properties: (parsed as p- plain text unless otherwise specified)

• summary - parse as p-name
• dtstart - parse as dt-start
• dtend - parse as dt-end
• duration - parse as dt-duration
• description
• url - parse as u-
• category
• location - including compat root vcard in the absence of h-card, and compat root adr in the absence of h-adr
• geo - parse as p-geo h-geo including compat root geo
• latitude
• longitude

Background

This work is based on the existing hCalendar and iCalendar specifications.

Design Principles

(stub, expand)

See Also

• microformats2
• microformats2-parsing
• h-adr
• h-geo
• h-card
• hCalendar