I enjoyed the gameplay quite much, I'm a fan of these type of games. At first is a bit overwhelming getting to know all the mechanics, but once you get used to them you start feeling the puzzles.
Sometimes for some reason the knobs didn't turn which hindered a bit the experience due to the timer against me. I also think the timeline-check timer needs a bit tweaking, it's too unforgiving for a first time player.
Given the fast-try-low-attention-span sessions with which participants generally approach game jam submissions evaluations I can see how some people might evaluate unfairly your game, since it takes a while to get used to and it's not the quick-to-grasp "arcade-type" simple bite-sized experience.
For me personally, as I said at the beggining, this is my cup of tea. I enjoyed it, it's an overall 4/5. Congratulations Thaliazhu, Kanthulhu !