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Perpetual date converter from Gregorian to POEE calendar

Official Discordian Document Numbering System item ddate:00001

Sacred Document of the Frogs (old Erisian poem)

73 Days hath
Chaos, Discord, Confusion, Bureaucracy, and

Okay, haha, seriously, what?

This is a program which converts Gregorian dates into the Erisian calendar, as described in the Principia Discordia: 00034. It's very useful. Stop looking at me like that.

About this version

It all started when I wanted to fix the infamous Saint Tib's Day Bug in the standalone version of ddate. It was easy enough to do, but then I also wanted to fiddle with some other things, and I discovered that since the code was mostly in two big functions, it was difficult to do that in a reasonable way. So I did what any sensible person would do: I rewrote pretty much the whole damn thing. It didn't hurt that I was stuck inside waiting for the collapse of civilization, either.

Nevertheless, the project would not have been possible without the original authors' hard work, which is by no means to be discounted. See also the version history.



[CC=clang] meson [--prefix=/usr] build
ninja -C build
[DESTDIR=pkg] ninja -C build install

Helping out

See HACKING. Or write it if it still hasn't been written.

If you'd like to add to this program but aren't into programming, consider adding new slogans to ddata/slogans. If you introduce an entirely new class of slogans, please make a new file to contain them and add it to the Makefile.

Note that the slogans should be relatively short, and must be on a single line. If you have some long-form text to contribute, consider adding it to ddata/wisdom instead and--well, who knows. Maybe someone will read it. Maybe someone will make a random wisdom file printer.

Finally, of course, if you find a bug, please submit it to the bugtracker.

The Calendar

To see the whole year at a glance, please refer directly to the Principia. Note that only one calendar is necessary: every year begins with Sweetmorn, 1st Chaos, and ends with Setting Orange, 73rd Aftermath.

The Year

Ol' Greg's 2020 CE is YOLD 3186. Years of Our Lady Discord are dated from the original snub (and the next page).

Seasons & Saints

You can find a fuller explanation in the Principia.

  1. Chaos: Patron Apostle Hung Mung
  2. Discord: Patron Apostle Dr. Van Van Mojo, or was it Patamunzo Lingananda?
  3. Confusion: Patron Apostle Sri Syadasti
  4. Bureaucracy: Patron Apostle Zarathud
  5. The Aftermath: Patron Apostle the Elder Malaclypse

Days of the Week

The days of the week take their names from the five basic elements: Sweet, Boom, Pungent, Prickle, and Orange.

  1. Sweetmorn
  2. Boomtime
  3. Pungenday
  4. Prickle-Prickle
  5. Setting Orange


Apostle Holydays

Each Apostle Holyday occurs on the 5th day of their season.

  1. Mungday
  2. Mojoday (Lingananday?)
  3. Syaday
  4. Zaraday
  5. Maladay

Seasonal Holydays

Each Seasonal Holyday occurs on the 50th day of the season.

  1. Chaoflux
  2. Discoflux
  3. Confuflux
  4. Bureflux
  5. Afflux

St. Tib's Day

Perhaps the most ineffable of Holydays, St. Tib's Day occurs once every 4 years (1 + 4 = 5), obviously not counting years which in the Gregorian calendar are multiples of 100, obviously unless it's also a multiple of 400 (100 + 400 = 500; 500 / 100 = 5).

It has no numerical date, and may be found between the 59th and 60th days of the Season of Chaos.


If you're viewing the HTMLized version of this, don't worry about this section. There are no secret messages in the original markdown, I assure you.