The Temporal Unit (TU) is the official Illuminatian unit for the measure of time and is the most basic unit of measure in the fourth dimension.
The practical usage of the TU in Illuminatia most closely correlates to how an hour would be used on Earth, although the TU is much shorter than an Earth hour. It is understood that one TU equals approximately 8.4 Earth minutes in duration. There are approximately 7.14 TU in one Earth hour. There are exactly 100 TU in one Circadian Unit (DU), which is the amount of time it takes the planet of Neonisi to rotate once about its axis. By comparison, there are about 171 TU in one Earth day.
Groupings of 3 to 4 TU are commonly used in situations in which an Earth hour would normally be used, such as in the scheduling of meetings, appointments, and wireless and television programs of any significant duration. The common acceptance of either 3 or 4 TU intervals in these situations varies regionally.
The TU is subdivided in decimals based on a metric system. A common short unit of time is the Decitemporal Unit (dTU), equal to 0.1 TU, or about 50 Earth seconds, taking the common usage case of the minute. Another popular short unit of time is the Millitemporal Unit (mTU), equal to 0.001 TU, or slightly more than one half of an Earth second (0.504 seconds). The Millitemporal Unit is much more desirable than an Earth second for use in circumstances in which Earthlings mark time using the second, as Illuminatians would find one second take way too long to pass. Frequency is measured the Recurrence Unit, which equates to one cycle per Millitemporal Unit.