Guild Wars 2

As described in the title the skill SoR and FGJ of the warrior does not stack might duration FGJ 25s + SoR 30s should equal to 55s also it does not make sense why swiftness duration is 35s it should only be 30s

For Great Justice
8s Fury
25s might – 3 stack

Signet of Rage
30s Fury
30s Might – 5 stack
30s Swiftness

When both skills are activated the result is below
38s Fury
35s Swiftness
30s Might – 8 stack

As far as I am aware, Might always stacked intensity, never duration. Why would you expect it to do? As for the Swiftness, are you using some sort of Rune that provides you with increased duration by any chance?

Actually yes my bad my runes provide 20% swiftness.

Ok, well that explains why might only lasts 30s. I’ve just thought that since the other boons stacked duration that might will stack duration as well.

Duration stacking is for effects that are binary on/off effects, like the +20% crit chance on Fury, or the +33% move speed on Swiftness. Effects like Might stack up to 25 times, and each of those stacks is tracked independently. Combining the two gives you 5 stacks of Might that have a 30s duration and 3 stacks that have a 25s duration at the same time; after 25s, it should drop down to 5 Might for the last 5 seconds of SoR’s effect.