The Vultro Calendar is a calendar system established solely in the Vultroverse, meant to clear any ambiguity due to the date in the current Archie comics universe being unclear. It asserts 0 ABV as the birth of Vultro the Fox, counting the years after (ABV) or before (BBV) that point. For instance, someone born 2 years after Vultro would have a birthdate of 2 ABV.
In relation to other major events in the Sonic series, the events of the first three games take place in 8 ABV.
The Vultro calendar also makes a clear assertion about when 0 ABV takes place in relation to other common calendars: 3219 on the original continuity calendar, and 13999 CE on the real-world Gregorian calendar.
The current year according to the Vultro Calendar is 28 ABV.