D'ni Time Units
The D'ni used a system of time measurement units that differs greatly from the one used on the surface. The smallest unit of D'ni time unit is called a prorahn (D'ni: proran), and the largest is the hahr (D'ni: har), which can be considered roughly equivalent to the surface second and year, respectively. There are also a number of intermediate units, which are usually equal to 5 or 25 of the next lower unit, akin to the base-25 D'ni number system.
|Name||Next lower unit||Rough surface equivalent||Notes|
|prorahn||None known||1.4 seconds||Smallest known D'ni time unit.|
|gorahn||25 prorahntee||35 seconds|
|tahvo||25 gorahntee||14 minutes, 31 seconds|
|pahrtahvo||5 tahvotee||1 hour, 12.5 minutes||Commonly used on D'ni clocks.|
|gahrtahvo||5 pahrtahvotee||6 hours, 3.7 minutes|
|yahr||5 gahrtahvotee||30 hours, 13.6 minutes||D'ni equivalent of a day; equivalent to one day/night cycle on Garternay, and to one day/night cycle of the algae in the D'ni lake.|
|vailee||29 yahrtee||36 days, 12.6 hours||D'ni equivalent of a month. Each of the 10 vaileetee has a name, similar to surface months.|
|hahr||10 vaileetee||1 year||D'ni equivalent of a year. Largest formal D'ni time unit.|
|hahrtee fahrah||625 hahrtee||625 years||D'ni equivalent of a century. Largest known D'ni time unit. Name literally translates to "625 hahrtee" (100).|
|Name||Split into|| Precise surface
| Precise surface equivalent|
(s, to 9 s.f.)
|gorahn||goran||25 prorahntee||34.8214347 seconds|
|tahvo||tavo||25 gorahntee||870.535868 seconds|
|hahrtee fahrah||hartE fara||625 hahrtee|
Similar to the twelve surface months, the ten D'ni vaileetee have names, each starting with the letters "Lee":
- Leefo (lEfo)
- Leebro (lEbro)
- Leesahn (lEsan)
- Leetar (lEtar or lEtår)
- Leevot (lEvot)
- Leevofo (lEvofo)
- Leevobro (lEvobro)
- Leevosahn (lEvosan)
- Leevotar (lEvotar or lEvotår)
- Leenovoo (lEnovU)
The name parts after the "Lee" seem to be derived from the respective vailee's D'ni number - e.g. -fo ≈ fah (one), -bro ≈ bree (two), -sahn ≈ sehn (three), etc.
Surface-D'ni date conversion
| "Oh, what a mess!"
This section is in serious need of improvement. Your help would be graciously appreciated.
Notes: Needs expansion
The exact length of a D'ni hahr was confirmed in a mailing list post by RAWA in 1997, which indicated 1 hahr to be equivalent to 365 days, 5 hours, 48 minutes, and 45.2 seconds, the current length of a mean tropical year on Earth. While this provided a means of exact conversion of timespans, it was not yet clear which surface year corresponded to which D'ni hahr. This information was later revealed on the old DRC site in April 2002, where it was stated that the D'ni New Year in 2002 AD marked the beginning of the D'ni hahr 9658. Combined with the previous information, this results in the following dates for the D'ni New Year events from 1998 to 2003:
BE and DE
BE (Before Earth) and DE (D'ni Era) are terms used by the D'ni Restoration Council in their documents to distinguish between dates prior to the D'ni Exodus and after it, as well as to distinguish D'ni hahrtee from surface years. The terms are comparable in some ways to 'BCE' and 'CE', or 'BC' and 'AD', though with a different epoch, and different time units. When the Ronay who followed Ri'neref arrived in D'ni, becoming the D'ni civilization, they marked the event with a blank hahr, starting at Leefo 1, 0 DE (April 24–25, 7657 BCE). 'BE' has been used by the DRC when referring to years before the exodus, counting backwards from 1 BE (7658–7657 BCE).