What kind of shield are you using? With a silver shield it's longer than that. Still not very long, but more than half a second.

Using a silver shield (level 3) I can parry and still get in 1 heavy hit. Its kind of a slog but its a golem.

That could be it...i thought i was using the same level of equipment as i last fought them with but even if i am its possible the shield stats were changed with the update. They're just the first mob i've run in to where the stagger time has been noticeably different so i jumped to the assumption it was a mob thing but it would make more sense if it was equipment. I'll have to craft a higher level shield and see if it staggers them longer.

Originally posted by Grimtempest:

So after the H&H update when i parry a stone golem the stun and vulnerability from that parry wears off in quite literally .5 seconds. Its so short you can't hit them even once during the stagger effect. Did they buff the golems to reduce their stagger or is this some sort of weird bug?

it was like this before, but only for the double fist attack.
the other attacks stun for the typical and expected duration.
similarly, stunning a greydwarf brute leaves them stunned for a shorter time than other things.