Enjoy the latest radio-controlled time technology along with the classic look and sound of the twin-bell alarm clock. This Atomic Bell Alarm Clock features super-accurate time synchronized by the U.S. atomic clock; automatic daylight savings time change; and four continental U.S. time zone settings. Alarm clock features large, easy-to-read numbers; luminous hour and minute hands; matte black finish; loud twin-bell alarm; snooze button; and night-light.