In blender, my animation runs for 250ms but setting mixer.time = 250/1000 doesn't go to same frame

Hey all, in blender, the animation runs from 0-250ms, but I only have keyframes up to 100ms. yet, when
I run the animation to when mixer.time = 100/1000 or 250/1000, then it only plays a tiny portion of the animation, how can I get the duration of the animation in the mixer in three.js?

Um, why do you think setting AnimationMixer.time would determine the duration of an animation clip? Have you tried setting AnimationClip.duration, instead?