When the clock strikes one in the morning, it will automatically jump to two. In the Autonomous Region of the Azores, it will go from midnight to one in the morning. Estefânia Marques, a clinical psychologist, explains the consequences of this change for our sleep. The change will bring more hours of natural light and the days will become longer. Daylight saving time remains in effect until the last Sunday of October, when the clocks will be set back one hour.