Our dog LOVES to lay in the sun. When it's cooler, we let her out for 5-10 minutes at a time and then get her back inside to cool off. If we let her, she would be out there all day. But we limit her time out there, esp. since she gets several long walks a day in the sun and/or is at daycare outside all day several days a month.
But how much is too much sun? The web sites I've checked just give general direction to limit exposure. But with a dog that doesn't seem to have the sense to stay in the shade, knowing real numbers would help, e.g. no more than 20 minutes per day, etc. Thx!