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#ical

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Now whose genius idea was it to limit calendar event colors to precisely the named colors of CSS in RFC7986, which were never intended as a sole palette because CSS also supports hex colors? 🤯

(Explicitly *not* blaming the author here; this probably comes from legacy systems and was reviewed by any number of people that could have caught it.)

So, after spending the better part of the day working on this, I now have an #iCal file that contains _one_ event for Easter, which is using an RDATE property to list all of the Easter dates in about 200 years (because it's an irregular event and normal repeat rules won't work).

Thunderbird accepts this (even if it says "repeat details unknown"), #khal on the command line does, too.

@mailbox_org's #OpenXchange web UI doesn't display them. 😩

Habt ihr ne schöne Quelle für Ferien-/Feiertags-Kalender(feeds) im iCal-Format? Ich hätte gern

• alle bundesweiten und regionalen Feiertage für Deutschland, inklusive der Info (im Beschreibungstext), in welchen Bundesländer der Tag gesetzlicher Feiertag ist (ein Feed mit allem)
• Schulferien für einzelne Bundesländer (ein Feed pro Bundesland)

Einmalige Downloads sind okay, Feed-URLs wären fast besser.

#iCal#ICS#Kalender

As we consider ways to implement #ActivityPub into our FOSS Community Calendar Ecosystem platform Koalagator, I've been looking over the differing specs for how to specify the event object schema.

Have any other folk wrestled with this?Asking before I get arms deep in this stuff.

For those playing at home...

---
Schema.org - Event

Schema.org is a collaborative, community activity with a mission to create, maintain, and promote schemas for structured data on the Internet.

schema.org/Event

-----
W3C Activity Vocabulary - Event

This specification describes the Activity vocabulary. It is intended to be used in the context of the ActivityStreams 2.0 format and provides a foundational vocabulary for activity structures, and specific activity types.

w3.org/TR/activitystreams-voca

----

Fediverse Enhancement Proposal
FEP-8a8e: A common approach to using the Event object type

ActivityStreams defines the Object Type Event. In real-world applications, the event object immediately showed the need for extension. Applications featuring Event objects have often chosen to add additional attributes and clarifications (i.e., interpretations) in order to implement their particular use case. This proposal clarifies and extends the ActivityPub standard to address the needs that have arisen in real-world implementations.

codeberg.org/linos/fep/src/bra

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[HTML] Microformats - h-event

People are using microformats to mark up profiles, posts, events and other data on their personal sites, enabling developers to build applications which use this data in useful and interesting ways.

microformats.org/wiki/h-event

---

iCalendar Standard (RFC 5545)

iCalendar was first defined as a standard as RFC 2445 in 1998 by the Internet Engineering Task Force (IETF). Today, iCalendar is used to import and synchronize events on various platforms, including smart phones, computer and web applications.

icalendar.org/the-icalendar-st

schema.orgEvent - Schema.org TypeSchema.org Type: Event - An event happening at a certain time and location, such as a concert, lecture, or festival. Ticketing information may be added via the <a class="localLink" href="/offers">offers</a> property. Repeated events may be structured as separate Event objects.

What are some of your favorite #Open #Document formats? Do you use #csv, #ical, #html and #css, odt, xml, json, #wav, #flac regularly? What #Free formats do you rely on? You can also use plain text files for a variety of functions from telling stories and taking notes to creating #todo.txt or similar files or #emacs org mode files. Have a favorite use for plain text files? Share it with us. Join us in celebrating #DocumentFreedomDay on March 26, 2025. #DFF #FLOSS

#followerpower Suche etwas, dass an regelmäßige (lineare) TV-Serien/Reihen erinnert.

Ich meine so regelmäßige oder unregelmäßige wie #aktenzeichenxy (way nur sehr kurz online ist) oder irgendeine #ÖRR Folge.
Bspw. per #ical, #RSS oder was auch immer.

Gibt es da irgendwas? Irgendeine Abo/Folgen-Funktion in den #Mediathek'en? RSS? Von mir aus auch Mail?

Ich meine sowas ist Standard bei #YouTube und co, warum gibt es das nicht für die ÖRR-Mediatheken?

📅 Liebe Community,
wir wünschen uns einen iCal-Abo-Link für unseren Stundenplan, um diesen einfach in unsere persönlichen Kalender importieren zu können!
Die Nutzungs-Anzeige der Lehrräume sind veraltet. Bei der notwendigen Investition in neue Technik wäre es großartig, auch iCal-Links für jeden Raum oder jeden Stundenplan pro Studierenden anzubieten. So könnten wir unseren Stundenplan bequem verwalten. 🙌 #iCal #iCalAbo #Stundenplan #Digitalisierung

does anybody know of an open source set of calendars for national holidays etc that can be subscribed to by #ical or #caldav? I'd trust one with a git repo more than the random free calendar sites, I think

alternately if there's a truly known-good random free calendar site, I'm open to suggestions!

edit: main feature I want is to not have to remember to import a new calendar each year. boosts appreciated!

Replied in thread

@joop

CW: This doesn't answer your question; it's just me blowing off steam.

Even publishing an .ics file seems to be rare these days.

I recently learned about jCal, the JSON format for iCalendar, so maybe there's still progress being made. But RFC7265 is already 10 years old!

And, of course, a new interchange format (jCal) requires that I re-tool all my previous software that expects iCal...

rfc-editor.org/rfc/rfc7265.htm

www.rfc-editor.orgRFC 7265: jCal: The JSON Format for iCalendar

What is in .ics files? These calendar files can now be inspected with a new command line tool: ics-query

pypi.org/project/ics-query/

Due to the power of #OpenSource, this tool was easy to create and has a high quality and compatibility from the start. The calculation module python-recurring-ical-events is more than five years old and has seen many improvements and contributions since.

PyPIics-queryFind out what happens in ICS calendar files - query and filter RFC 5545 compatible .ics files for events, journals, TODOs and more.

Wir haben eine Beschreibung / Anleitung für den BBSindex #Calendar fertig.

Ihr könnt die Termine in Eurer Mailbox anzeigen. Wir haben inzwischen auch #iCAL / .ics support. Getestet haben wir iCAL mit Thunderbird und iPhone. Natürlich können auch Webfähige #Commodore #Amiga #Atari und andere Systeme die Termine auf puren #HTML Seiten abrufen. Für diese Systeme bieten wir seperate Unterstützung auf BBSindex.de an.

Alles was wir jetzt noch brauchen ist etwas #followerpower damit auch viele Ihre Events in unseren Kalender eintragen.

Hier sind alle Infos zum BBSindex Calendar:

bbsindex.de/pc/projekte.php?pr

www.bbsindex.deBBSindex.de - BBS Nachrichten (Legacy PC Version)