But all that happens on time scales of days, so is irrelevant for the climate. (wattsupwiththat.com)
A model of solar irradiance variations is presented which is based on the assumption that solar surface magnetism is responsible for all total irradiance changes on time scales of days to years. (aanda.org)
On a time scale of days to weeks domains converge to circular shapes and approach uniform texture. (science.institut-curie.org)