Animation duration too long

Hello, i have a problem, my animation goes for 0.01 seconds longer than my last keyframe.



I'm doing something very specific and its a huge deal that the animation's duration is exactly 1.15 seconds.

 

Hey there,

I was scrolling through Animation problems the other day, I might be able to help,
Select first and last frames in your animation and change the values (right Click see pic), I dont know what they mean, but when my anims were glitchy i found a solution similar to this to smooth my frames, maybe its a similar like issue.