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The Wiki is claiming that the Dune Calendar starts with the Spacing Guild. Is this and their analysis accurate? If not then:

Can we say by our calendar when is 10191 in the Dune universe?

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  • 2
    are you asking if the dating never reset, what year would it be following our current calendar?
    – Himarm
    Dec 14, 2015 at 15:47
  • Correct, also is the Guild's creation the start data as they are claiming? Dec 14, 2015 at 15:59
  • 1
    The year after 10190? Oct 13, 2021 at 13:29

4 Answers 4

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From the wikia that you linked:

Thus, the year 10,191 AG corresponds to the year 21,267 A.D. That is, of course, assuming that the Dune chronology actually uses Earth years.

But Dune counts in Standard years:

"Taraza was momentarily abashed. This was an imposition. Teg was still a regal figure, tall and with that large head topped by gray hair. He was, she knew, four SY short of three hundred. Granting that the Standard Year was some twenty hours less than the so-called primitive year, it was still an impressive age with experiences in Bene Gesserit service that demanded that she respect him." HoD ~Page 36 So there could be a maximum error of about 400 years (since we do not know when the Dune Universe started using the "Standard" year). This method also assumes that humankind began exploring "deep" space in the 20th century a decade after World War II.

So accepting all those assumptions it would be between 21,267 A.D. and 21,667 A.D.

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  • We know roughly when: 2050 AD (ETA for Interstellar flight) +11000 (From Appendix II) + 210 (Butlerian Jihad starts in 210 B.G.)+ 10191 - 50 (conversion from solar day to Standard day for whole period) = ~23400 AD
    – AcePL
    Oct 25, 2021 at 11:55
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"Leto Atreides (10,140-10,191)" - Dune Novel, APPENDIX IV (pg.381).

14255 B.G. = 1945 A.D. Atomic bombs dropped on Japan. - The Dune Encyclopedia.

14255 BG + 10191 AG = 24447 years

1945 AD + 24447 Years = 26392 AD.

Frank Herbert didn't say it was a different calendar, therefore, it was not important to him, therefore, no need to go changing the number of days in a year.

[edit]

Oops, I hadn't read HoD in about 30 years.

"Taraza was momentarily abashed. This was an imposition. Teg was still a regal figure, tall and with that large head topped by grey hair. He was, she knew, four SY short of three hundred. Granting that the Standard Year was some twenty hours less than the so-called primitive year, it was still an impressive age with experiences in Bene Gesserit service which demanded that she respect him."

((24*365.26)-20) hours X 10,191 = 10,167.75 AG

14,255 BG + 10,167.75 = 26,367.75 AD

This assumes the standard year was establish when the Guild was. For anyone wondering what the biggest difference could be, calculated with the minus 20 hours from 1945 AD, it's even 55.77 years less, or 26,336.22 AD

• 26,336 AD - 26,367 AD is still the most accurate.

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  • (26,336 - 26,367 ) + 1945 AD Oct 13, 2021 at 17:14
  • It's not, according to Dune Appendices, though. The original Dune would make 10191 A.G (After Guild) about 23450 A.D (assuming interstellar flight within next 30 years), Otherwise humankind is choking itself on Earth or in Sol for nearly 3000 years between 1945 and first interstellar flight.
    – AcePL
    Oct 25, 2021 at 11:49
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I think the year 10191 comes from the Dune movie (1984). I can not recall having read this in the book, though I may be wrong. Because it is harder to create the entire Dune universe in a movie, they may have used Earth years instead, so 10191 is 10191 AD. This would make sense, because the film introduction by the princess also claims that "The Spacing Guild and its navigators, who the spice has mutated over 4000 years (...)". Since the Guild only has a place in the universe with Guild Navigators, the Guild can not have been much older than 4000 years in the year 10191.

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The novel DUNE is set twenty five thousand years from now.

The year 10191 isn't using our existing Gregorian calendar.

We are now at around 14300 years BG (BEFORE GUILD)

14300 years from now the guild and CHOAM are established.

The calendar is reset at this time. Years are now AG (AFTER GUILD)

I Assume old Earth years are still used with this new calendar (365days).

10191 Years later are when the events of Dune take place.

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  • 3
    What are you basing this bold assertion on?
    – Valorum
    May 27, 2018 at 14:25
  • 1
    The book does refer to the standard year, which is used across all planets, but I see nothing explicitly linking that to an Earth year.
    – Chenmunka
    May 27, 2018 at 15:13

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