Chraest’s year is 540 days long.
Its days are twenty-eight 60-minute hours long.
Each minute on Chraest is approximately 60 seconds long, as with our planet.
When writing about the age of a character on Chraest, I use the Chraesti age, not the Earth one.
As a result, a character who is 15 on Chraest is approximately 26 Earth years old.
A character who is 16 on Earth is approximately 9.3 Chraesti years old.
If you’d like to perform your own figuring for Chraesti Ages, the formulae are as follow:
Chraesti = (EAge*8760)/15,120
Earth = (CAge*15,120)/8760