Yeah but that's why I want to know the approximate. :ILess than a year
You right. If they finished, Goku would have been SSJ2 as well lol1 day = 1 year in the hyperbolic time chamber
They didn't spend the whole day in there, but it's not like they gave us "x hours, x minutes"
So around 10 months is probably the best you're gonna get
Yeah roughly something like that, because a full day had not passed yet outside the chamber and 1 day outside is 1 year (12 months) inside.I'm inclined to believe they stayed 10 months in there.