Horology How Thessians keep time


Postlapsarian Thessian timekeeping is measured in six major units (which we shall soon go into more detail about) which are not really equivalent to the six we use (seconds, minutes, hours, days, months, years) but match up well enough that we can speak of them in that fashion without too much trouble.

A real-time version of the contemporary Thessian calendar can be found here.

TsS:Earth seconds1.67300:1Thessian seconds to Earth seconds
TsS:TsN144:1Thessian seconds to Thessian minutes
TsN:TsH144:1Thessian minutes to Thessian hours
TsH:TsD12:1Thessian hours to Thessian days
TsD:TsM12:1Thessian days to Thessian months
TsM:TGC12:1Thessian months to Thessian years
TGC:Earth years1.8996:1Thessian years to Earth years (average)
The New Thessian Time Scale

A Thessian year is thus 1.9 Earth years long, or 693.8 Earth days, but only 144 Thessian days long. Unlike on Earth, Thessian timekeeping is based around a series of small islands in tight orbit of the Eye called the Horologium. Because the fluctuations of the anomaly are more predictable the closer a suspended body is to it, with a bit of calibration they can actually serve as the hands on a great clock, which is controlled by a central power station which floats directly above the eye.

The Thessian calendar is measured in Thessian years just like the Terran calendar is measured in years; to indicate where the calendar starts from, however, the "tgc" suffix (Thessian Great Cycle) is added, much like "AD" or "BC" is added to Terran dates to indicate the zero-point and direction. Like other units, "TGC" is capitalized when discussing a quantity, and lower-case when discussing a date.

This has reliably transmitted on the frequency of 86.073 MHz throughout the shattered place for many millennia, being upgraded twice to accommodate for improved knowledge of Doppler effects. Archaeology on abandoned repeater stations suggests that these upgrades both happened during the middle Iron dynasty, as these events changed the signal's protocol and the old repeater stations expect a different format than currently is being transmitted.


Prior to the Shattering, methods of timekeeping were diverse among the various nations of Thessia Major and Thessia Minor. A day/night cycle served as the basis of most time systems, although in the majority of countries, the time of day itself was fixed relative to a capitol or religious site, rather than local observance of sun rise (as had been more primitively done), or time-zoning as practiced on ancient Earth.

Kalendis (IKY/LKY)

ky:tgc1.2:1IK years to new Thessian great cycles
kc:ky60:1IK cycles to IK years
kw:kc9:1IK workdays to IK cycles
ks:kw4:1IK shifts to IK workdays
km:ks288:1IK minutes to IK shifts
km:TsN3:1IK minutes to new Thessian minutes
km:ky622080:1IK minutes to IK years
kμy:ky2985984:1IK microyears to IK years
The Kalendis Time Scale

The Kalendis system, established by the Lyrisclensiae as an astronomical tool, is based primarily on the oscillations of various stellar phenomena. It was the closest Thessia Major had to a standard method of timekeeping, being used extensively in the infrastructure that the Lyrisclensiae built throughout the Thessian system, and independently by the Hatelese Commonwealth. In its last and best-known state, it was been retrofitted with smaller scales of time measurement that accounted for experienced time scales, although some purists continued to use a microyear-like measurement instead of the predominant minute analogue. The traditional LKY calendar is equivalent to the Thessian IKY calendar but starts 68160 ky earlier; it is still used by the Hatelese and Lyrisclensiae outside of Thet.

Both km and kμy are commonly divided into 144 subunits called seconds and decananoyears, respectively.


DD:TD144:1didtale:taldidte (144 'subseconds' per 'second')
TD:TT72:1taldidte:talitre (72 'seconds' per 'minute')
TT:TV36:1talitre:talive (36 'minutes' per 'hour')
TV:SK36:1talive:solwikse (36 'hours' per Ksreskézoní solar day)
SK:PT6:1solwikse:pléholitre (6 days per week)
SK:ZT25–34:1solwikse:zhanekhtíe (25–34 days per month)
SK:PO243:1solwikse:pléove (243 days per year)
PO:TGC3.372:1pléove:Thessian Grand Cycle (3.372 Ksreskézoní years per Thessian year)
PO:Ty0.56332:1pléove:Terran years (1.77 Ksreskézoní years per Terran year)
Glotshakhto, the Ksreskézaian–Lilitic calendar.

The Ksreskézaian system, like our own Gregorian calendar, was much less refined than the Lyrisclensian and Thessian systems, in large part because it was tied to the demands of a natural body. The lengths of each month (which are founded in Ksreskézaian legend) and their Lilitic names are given below:

#Lilitic MonthTranslationDays
n/aStillasaní PléholitreGoddesses' Week6
7KelatalíaOld Age27
Lilitic month names for the Glotshakhto calendar.

Because the week is 6 days long and the year is 9 × 9 × 3 days long, years are counted as 'even' or 'odd' depending on whether they start on the first day of the week or the fourth. When a leap day was required in the Ksreskézaian era, it generally occurred on the seventh day of the week as an extra day of rest to prevent businesses and officials from having to account for it. The Ksreskézai normally took the sixth weekday off; the Lilitai generally take the second and fifth days off; sometimes also the first. The Lilitai consider it bad luck to not work on the sixth day of the week, even if ill.

#Lilitic DayMeaningOksírapho DayTranslation
1DeklérékaDay of IthovíhaDeklhegrekñoDay of the Mind
2SabtérékaDay of MoiléaSabt'hegrekñoDay of Might
3LítrérékaDay of LítréaVmitrhegrekñoDay of Progress
4SeregékaDay of ÚravéaSnerhegrekñoDay of Secrets
5KalérékaDay of PoaléaKsalhegrekñoDay of Agriculture
6GlérékaDay of ZeltetéaGeglok'hogrekñoDay of Life
Glotshatko weekdays. Names are slurred forms of Ksreskézaian originals.