Purchased Item no hassle me to change the time during the time change winter / summer. Except that ... well despite a good time reception (see icon on the display), and it took me to rule in his hand during the time change there three days :( The awakening to yet done its single setting when I turned on the first time. I specify that the auto function of the time setting is enabled. The display on the ceiling is of good quality compared to other models. So a little disappointed with this purchase.