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D’ni Time

Authored by Isyldar on September 3, 2007

There are a number of applicatios in the cavern, for which we need to know how D’ni time works. The DRC released a document a number of months ago explaining how it all worked, and placed copies of it in some of the Neighborhood classrooms.

D’ni Time Document

Much as with anything else in D’ni, the timing system can appear to be complicated at first; but that is mostly because, as with measurement and math, D’ni based their time on their favorite number 5.

The terms in D’ni time are as follows:

  • hahr – roughly a year
  • vai-lee – a D’ni month. (hahr divided by 10)
  • yahr – a D’ni day. (There are 29 yahr in a single vai-lee)
  • gahr-tah-vo – A day segment. There really isn’t a good Earth equivalent. (5 gahr-tah-vo-tee in a single yahr.)
  • pahr-tah-vo – This would be similar to an Earth hour, save that it has an extra 13 or so minutes in it. (gahr-tah-vo-tee have 5 pahr-tah-vo in them.)
  • tah-vo – Again, the closest similarity between this denomination of time and those on earth would be the quarter-hour. There are 5 tah-vo-tee in a single pahr-tah-vo
  • gor-ahn – 25 gor-ahn-tee in a single tah-vo
  • pro-rahn – the closest similarity to an Earth second. Is about 1.5 seconds. There are 25 pro-rahn-tee in a single gor-ahn.

If I’ve confused anyone here with my attempt to simplify the DRC’s time document, I apologize. I will note that, the difference between ‘gor-ahn’ and ‘gor-ahn-tee’ is that one is singular, and the other plural. (That really messed me up for a little while when trying to read the original document.)

And in all, if you’re trying to figure out D’ni time, break our time down to seconds, and work your way up from pro-rahn-tee. Here’s an example:

14 surface days = 14 x 24 x 60 x 60 = 1209600 surface seconds.
1209600 / 1.4 = 864000 pro-rahn-tee
864000 / 25 = 34560 gor-ahn-tee
34560 / 25 = 1382.4 tah-vo-tee
1382.4 / 5 = 276.48 pahr-tah-vo-tee
276.48 / 5 = 55.296 gahr-tah-vo-tee
55.296 / 5 = 11.0592 yahr-tee

You could continue this to figure out fractions of a month and year, but the result we have here is this:

14 surface days = approx. 11 yahr-tee (or D’ni days).

The method of calculation I’ve posted above is possibly the most accurate method of figuring out the conversion, however, the document released by the DRC contains some approximations that would make converting from surface time to D’ni time a little faster, if less accurate.

eg)  14 surface days / 1.26 = 11.11111 yahr-tee

8 Comments »

  1. I am sure that Nadnerb can simplify this a little more than I can, but at least we’ve got a text on converting surface time to D’ni time. :)

    Comment by Isyldar — September 3, 2007 @ 12:59 pm Cavern Time

  2. I don’t know about .. simplification. The document itself works pretty well. I suppose a table might improve it though… Otherwise I just have to read all those words. :D

    Dni time Closest Surface time Equivalent Equivalent D’ni increment
    hahr 1 year 10 vai-lee-tee
    vai-lee 1 month 29 yahr-tee
    yahr 30 hours 14 minutes (1.26 days) 5 gahr-tah-vo-tee
    gahr-tah-vo 6 hours 3 minutes 5 pahr-tah-vo-tee
    pahr-tah-vo 1 hour 13 minutes 5 tah-vo-tee
    tah-vo 14.5 minutes 25 gor-ahn-tee
    gor-ahn 35 seconds 25 pro-rahn-tee
    pro-rahn 1.5 seconds smallest known incremement

    I was thinking of adding another column with the more accurate measurements, as using those will leave you with some terrible rounding errors! But it was hard enough getting those three columns to fit on one page of this site. :P

    Comment by Nadnerb — September 5, 2007 @ 6:06 pm Cavern Time

  3. So when are you joining us back down in the Cavern? We haven’t seen you there in, I want to say weeks, but I don’t think it’s been that long.

    The Sardines crew miss you!

    Comment by Isyldar — September 5, 2007 @ 7:07 pm Cavern Time

  4. Scratch that, it has been weeks since you were by the Bevin.

    Comment by Isyldar — September 5, 2007 @ 7:08 pm Cavern Time

  5. I’m looking for the original Myst D’ni Map

    Comment by Kim — May 20, 2010 @ 11:41 am Cavern Time

  6. There was no map of D’ni in Myst, but one of the books came with a map of the caverns that lead to D’ni, so you’re probably looking for this: http://uru.patchallel.com/images/Atrus-Map.jpg

    Comment by Nadnerb — May 20, 2010 @ 12:43 pm Cavern Time

  7. please tell me where i can see it now,it was originally my map and got stolen,have not been able to find since,i am the boy born from anna”s relationship down there

    Comment by Kim — May 20, 2010 @ 4:01 pm Cavern Time

  8. That’s certainly the only map I’ve ever seen. From Aitrus’ Notebook, if I remember correctly.

    Comment by Isyldar — May 23, 2010 @ 12:25 am Cavern Time

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