The Ice Queen
Calendar of Clio
It is presently the year RCY 693. While RCY originally stood for "Republic of Clio Year", the Ice Queen hasn't introduced an alternative designation. So now, in the absence of any actual Republic, it doesn't stand for anything. It's just RCY.
The year is divided into 12 months of 30 days each, cleverly named Primus, Secondus, Tertius, and etc.