[quote=@Kho]
[@BBeast] [@Muttonhawk] [@Rtron] [@Vec]

How long has passed in-game since the avatars first clashed? 

That is, between that point and the current events of the Realta invasion and decimation
[/quote]

Some ill-defined quantity measurable in years was my perception.

P.S. It's all rather screwy, since, checking where events line up, this clash happens about 1 month after the Phantasmagoria (Phatasmagoria happened while the hordes were out marching. Gerrik received instructions to prepare for battle the day after. 30-40 days later the horde is scheduled to arrive due to deals. Stand occurs some days before the end of that period). Since the Phatasmagoria, some timelines have progresses a couple of years. Some have progressed decades. Some may have progressed a century or more. All converge at the Realta, which was the next global event to tie all the timelines together.

So it's a good thing we aren't keeping too strict a track of time.