The Discordian year 1 YOLD is 1166 BC. (Elsewhere in the Principia Discordia, it is mentioned that the Curse of Greyface occurred in 1166 BC.: 00042 As a reference, AD 2023 is 3189 YOLD (Year of Our Lady of Discord). The abbreviation "YOLD" is not used in the Principia, though the phrase "Year of Our Lady of Discord" is mentioned once.: 00053
As described in the Principia Discordia, the Discordian calendar has five 73-day seasons: Chaos, Discord, Confusion, Bureaucracy, and The Aftermath. The Discordian year is aligned with the Gregorian calendar and begins on January 1, thus Chaos 1, 3189 YOLD is January 1, 2023 Gregorian.
The Erisian week consists of five days: Sweetmorn, Boomtime, Pungenday, Prickle-Prickle, and Setting Orange. The days of the week are named after the five basic Discordian elements: Sweet, Boom, Pungent, Prickle, and Orange. There are 73 of these weeks per year and every year begins with Sweetmorn.
Every fourth year in the Discordian calendar, starting in 2 YOLD, an extra day is inserted between Chaos 59 and Chaos 60 called St. Tib's Day. This is because 4 years + 1 day = 5, a holy number, but the Discordian leap year also coincides with the Gregorian one. The result of this is that any given day of the year in the Discordian calendar may be taken to correspond to the same day of the year in the Gregorian calendar, and vice versa, although some users of the calendar believe that it is tied to the Julian calendar and so will diverge from the Gregorian in 3266 YOLD (AD 2100). St. Tib's Day is considered outside the Discordian week.
There are Apostle Holydays on the 5th day of each season, named after the 5 Discordian apostles: Mungday, for Hung Mung; Mojoday, for Dr. Van Van Mojo; Syaday, for Sri Syadasti; Zaraday, for Zarathud; and Maladay, for Malaclypse the Elder. There are also Season Holydays on the 50th of each season: Chaoflux, Discoflux, Confuflux, Bureflux, and Afflux.
|Holyday||Discordian calendar||Gregorian calendar|
|Mungday||Chaos 5||January 5|
|Chaoflux||Chaos 50||February 19|
|St. Tib's Day||St. Tib's Day||February 29|
|Mojoday||Discord 5||March 19|
|Discoflux||Discord 50||May 3|
|Syaday||Confusion 5||May 31|
|Confuflux||Confusion 50||July 15|
|Zaraday||Bureaucracy 5||August 12|
|Bureflux||Bureaucracy 50||September 26|
|Maladay||The Aftermath 5||October 24|
|Afflux||The Aftermath 50||December 8|
Only these eleven dates are named in the Principia Discordia; however, Discordians have felt free to invent other holidays which have become popular to varying degrees. Some of these include Discordians for Jesus/Love Your Neighbor Day (March 25/Discord 11); Jake Day (April 6/Discord 23 or occasionally May 23/Discord 70), a day to send tongue-in-cheek letters, emails or faxes to an official or bureaucracy; Saint Camping's Day (May 21/Discord 68), a day to make End of Days predictions and share them in social media; Eris Day (May 23/Discord 70), a day to gather and celebrate Goddess; Towel Day (May 25/Discord 72); Mid Year's Day (July 2/Confusion 37); X-Day (July 5/Confusion 40); and Multiversal Underwear Day (August 10/Bureaucracy 3).
ddate is a program that prints the current date in the Discordian calendar. It was a part of the util-linux package containing basic system utilities. As such, it had been included at least since 1994 in nearly all Linux distributions. In August 2011 however, one of the maintainers of util-linux made ddate optional, and by default omitted. In October 2012, ddate was completely removed from util-linux. The ddate program now has an upstream source. There was some controversy, but in the end, anyone wishing to reintroduce ddate to a distribution will have to create a separate package based on the new upstream. This has been done for Debian, FreeBSD, Fedora Linux, and Gentoo Linux for example.
- the Younger, Malaclypse. Principia discordia, or, How I found goddess and what I did to her when I found her: the magnum opiate of Malaclypse, the Younger, wherein is explained absolutely everything worth knowing about absolutely anything. Paladin Press. ISBN 978-1-58160-547-1. OCLC 896879384.
- "Holydays from the Ek-sen-trik-kuh Discordia". April 25, 2009.
- "util-linux: Miscellaneous utilities for Linux, 2.12j". Archived from the original on February 13, 2010. Retrieved December 8, 2007.
- "build-sys: add --enable-ddate". kernel.org Git commit log. Karel Zak. Retrieved May 8, 2014.[permanent dead link]
- "ddate: remove from util-linux". kernel.org Git commit log. Karel Zak. Retrieved May 8, 2014.
- "The ddate source ripped out of util-linux". GitHub/bo0ts/ddate. Philipp Moeller (bo0ts). Retrieved May 8, 2014.
- "Bug 823156 – Reintroduce ddate into Fedora". RedHat bug tracker. RedHat. Retrieved May 8, 2014.
- "What's new in Fedora 17 (The H)". Linux Weekly News. Retrieved May 8, 2014.
- "Fedora ddate Package page". Fedora Packages Web App. Fedora Project. Retrieved May 8, 2014.
- "app-misc/ddate". Gentoo CVS repository. Gentoo Foundation. Retrieved May 8, 2014.
- "HodgePodge Discordian calendar Android App". Google Play. Retrieved January 2, 2013.
- "discordian-calendar". Rob Fletcher. Retrieved December 13, 2014.
- 'ddate' Linux man page @ die.net
- Discordian Calendar described in the Principia Discorda
- Discordian Holydays in vCalendar/iCalendar format Archived September 28, 2007, at the Wayback Machine
- Holydays from the Ek-sen-trik-kuh Discordia
- Java sources for Discordian date calculation
- Mac OS X Dashboard Widget to calculate current Discordian date
- Online Gregorian-to-Erisian Date Converter
- Online Thuddite-to-Discordian (and vice versa) calendar