In Legends of Metru Nui we see the backstory of the Turaga, but we see them transform into Toa and at the end into Turaga, there was also 3 film and books inbetween. But for how long were Toa Metru Toa during their life?
Looking at BS01.com's timeline, it appears to be less than a year. I'd say about 5 months at most..
So I thought it was around or less than year, well, they had a job to do, they've done it.
Pretty much. here's BS01's timeline if you haven't seen it.
Okay, so that begs the question if they were to a for only 5 months, then why do they act so wise and as if they have years of experience. Did transforming into turaga make them wise all of a sudden?
Dunno. That always confused me too.
Well, they did lead the Matoran villages on Mata Nui for a thousand years after transforming into Turaga...