Problem Description: This is a bug that has been around for many, many years: it is impossible to type specific values into the Time Remap field in the Timeline panel.
Steps to Reproduce: 1. Drop some footage into a comp 2. Right-click it and 'enable time remapping' 3. Add a keyframe or two 4. Click on the timecode of one of the keyframes and type in a new value. Or press the arrow up/down keys.
Actual Result: Either nothing changes or the timecode changes to something other than the value typed in.
Expected Result: The timecode should be whatever was typed in. Or it should get nudged up/down by 1 frame when pressing the arrow keys.
Any Workarounds: Scrub the value to get a kinda-accurate figure in there.