What device allows for the adjustment of timing and speed of animations in After Effects?

The option that allows for the adjustment of timing and speed of animations in After Effects is Time Remap. This feature enables users to alter the timing of an entire layer, effectively allowing them to speed up or slow down the playback of that layer's animation. Through Time Remap, you can create keyframes to define specific points in time, and by manipulating these keyframes, you can achieve unique playback effects, such as reversing animations or creating slow-motion sequences.

While the Speed Graph is a valuable tool for fine-tuning the speed of transitions between keyframes—offering visual representation of speed changes—it doesn't directly allow for the adjustment of layer timing in the expansive manner that Time Remap does. The Bézier Curve primarily relates to motion path adjustments and control points for easing animations, affecting the curve of animation rather than overall timing. The Animation Timeline is a fundamental element of After Effects that organizes layers and keyframes but does not provide direct functionality for speed or timing adjustments independent of layer properties. Thus, Time Remap stands out as the most effective tool for controlling animation timing and speed.