Your computer and cell phone will take care of it automatically, but manually advancing a timepiece on March 9, when daylight saving time begins, will bring a certain satisfaction. (It’s also the date that the Fire Department recommends you replace your smoke-alarm batteries.) If your bedside clock is this high-low-tech LED and wood block piece by Kouji Iwasaki ($185 at Lancelotti Housewares, 66 Ave. A, nr. 5th St.; 212-475-6851), all you need to do is press a couple of buttons on the back to herald the arrival of more daylight. For more timekeepers, click ahead.