The Imperial Calendar

The Imperial Calendar consists of 15 months, each of which contains 28 days divided into fortnights. The months are named as follows.
1. Premier Transitory 2. Clement's Edge 3. Mid Clement 4. Clement's End 5. Mid Transitory 6. Summer's Edge 7. Mid Summer 8. Summer's End 9. Final Transitory 10. Autumn's Edge 11. Mid Autumn 12. Autumn's End 13. Winter's Edge 14. Mid Winter 15. Winter's End
The days of each fortnight are named as well and their names follow,
1. Olesday 2. Bransday 3. Albusday 4. Mertinsday 5. Filksday 6. Perrinsday 7. Midsday 8. Mothrsday 9. Gardsday 10. Sheepsday 11. Sagsday 12. Ladisday 13. Oxday 14. Wandsday
Typically dates would be written in a format that proceeds from the day, to the month to the year. As an example, one would write "Gardsday, the 18th day of Autumn's End, in the 10XX year"