At least for us and our horses as they had a day off. Not so Siffi and his horses, who we met when going for a ride. As you can see, people here dress the way you can easily spot them. Think it's really important, especially at this time of the year when it gets dark rather early. 
Afterwards we took a drive to Ísólfsstaðir and checked our ridinghorses, which are still enjyoing their holiday, there. They are in really good shape eventhough they are still "just" feeding on dry grass, no additional hay. We'll fetch some of them home soon.