I agree with Erik on the passage of time from an in-game perspective. The full spectrum of events shouldn't be determined as having transpired until the next patch. Otherwise, you have people all over the place.
As for what year it is, remember that years only use counting numbers. If we're in the 7th Umbral Era then there is no year zero. 5 years from the Calamity is year 6. 6 years from the Calamity is year 7. When you refer to the time in history, you wouldn't refer to the 0th year of the 7th Umbral Era.
As for what year it is, remember that years only use counting numbers. If we're in the 7th Umbral Era then there is no year zero. 5 years from the Calamity is year 6. 6 years from the Calamity is year 7. When you refer to the time in history, you wouldn't refer to the 0th year of the 7th Umbral Era.