The total was about 3 days. I have double re-enforced windows and always have the room dark until dusk or when the sun is on the other side of the house. I couldn’t notice a visible difference in the cards. Would three days of about 3 or 4 hours be significant? Please advise so I do not have to be too angry at my wife.








………………………really?
It has done no damage, and if it did.. shouldn’t you have closed the blinds yourself? I mean you cant blame her really.. your most likely capable of closing the blinds yourself, or putting your cards farther away from the sun..