Having run many a D&D game, I can tell you that players generally don't like a hard clock. It can be nice to have a stick to drive people forward a bit but overall the trope of a McGuffin is typically more enjoyable.

What is the problem you are solving? Does your proposed change solve the problem? Is your change feasible? What else will be affected by your change? Will your change impact revenue? Does your change align with the goals and strategies of the organizations (Larian, WotC)?