Clock works now, but IMO it kind of breaks the game: For example you can now train mana control in your home before you get it to level 5. You can also train it more often (Church only opens at 10 or 11, but you can use the clock to train it already at 1).
IMO it would make more sense to use the clock in a different way: Allow to select a single action of the current location (only actions that you‘re allowed to do and which can be repeated) and repeat that one until the dragon arrives.
Example: At the blacksmith (once you‘re allowed to use the workspace) allow to repeat either „practice blacksmithing“ or „work on order“. When you do that at 11, you will automatically repeat that action until 15 (eg 4 times) when the dragon arrives.
At your home allow „train alchemy“ (if you have access to emmy‘s room), „create burn salve“ (once you‘re proficient)….