I looked for some online charts and calcs, but none of them had test ace on them. So I was curious what the halflife of test ace is and how long it takes to start working? I know test prop is 24-48 hours.
You asked relatively vaguely. But I presume you are asking about terminal half life and Tmax? Or are you asking about when one "feels" the hormone working?
In any case, Tmax for prop should be around 10 - 14h (individual variance and carrier oil play a role) and half life in the terminal phase should be around a day, 20 - 24h. So after the time of injection, it will take app a day and a half to have half of solution in your serum (tmax + 1HL).
I have no idea about acetate though. Share if you find any concrete studies plz.