Hello, this is a common problem with timing on the microsoft solitaire collection game with the way it calculates time. The issue is that it continues to count your timer even if you are not actually in the game/go do something else for a while and are not playing.
This seems to be a bug with the game in general.
You can check the solitaire FAQs here: https://microsoftcasualgames.com/casualsuite/su...
then you can report it on the feedback hub with win+F. Other than that my only suggestion is to re-install and see if that helps.