So... here's some basic notes on my ideas for the Transylvanian Calendar system. The years are based on the year-system from my Gaius Cececatus Felix stories. I've modernized the month names and written them here, too.
About Transylvanian Years (TY)
Each year is 384 days. These years are counted from about 124 AD in our year-system.
To convert a specific EY into a TY: [the Earth year] - [124] X [365] / [384] = [the corresponding Transylvanian year]
To find 1974 (Denton Affair's year): [1974] - [124] X [365] / [384] = circa 1758.
Correct me if that's totally wrong, but I think that's how years could be figured out. I still haven't got a reliable formula for more specific time. Yes, I've been forgetting the first step in that equation when writing out years for I, Claudia. One day I will fix that!
The 16 Months (24 days each):
1. Trixian (New Year)
2. Roxian (July)
3. Jupitian (August)
4. Laurian (September)
5. Waverlian (extra)
6. Hartlian (extra)
7. Salpirian (extra)
8. Octian (October)
9. Novemian (November)
10. Decemian (December)
11. Claudian (was Jan)
12. Dulcibell (was February)
13. Brianill (was March)
14. Currian (was April)
15. Patricill (was May)
16. Janian (end of year, extra)
The 6 Days of the Week:
Lunaday (Saturday/weekend)
Transylvaday (Friday)
Lauriday (Thursday)
Curriday (Wednesday)
Patriciday (Tuesday)
Brianiday (Monday)
I tried to change anything that involves the IX Hispana Legion (who Transylvanians are descendants of in Cececatus Felix stories). Though I left in which month would be which if we did go with the idea that the calendar was based on the Julian Calendar.
It's meant to be symbolic that the first month of the year is called 'Trixian'. Trixie can be a shortened form of Viatrix, which means 'voyager'. One is 'voyaging' into a new year during that month.
As usual, if you want to add ideas or borrow something just message me.