Sure, no problem. :)
- There was nothing frustrating about the timeline app. It's a clever idea and it's useful. However, because you had to fill in different gaps in different apps (time, phone, ID, date, etc), and because time is so critical in your mystery, I found myself continuously going back a couple of screens to the source to verify everything was correct. That was the cumbersome bit. I think a cut & paste function would fix this to a large extent.
- On a completely different note, last year I took part in this jam with a game named Dead Girl Trending (https://thistlestudios.itch.io/dead-girl-trending) where I also implemented a timeline with draggable handles. Not sure this would be useful in your case, but it might give you another perspective.
- Four hours was on point for me. I prefer a mystery you can get into. :)
Anyway, as I said, I loved your game. It's really great work. We are probably discussing professional level of polish here.