For precise timekeeping, utilize the Skilcraft Radio-controlled Atomic Wall Clock. Using atomic quartz movement, it maintains accuracy within one second of deviation per 30 million years and automatically adjusts for Daylight Saving Time. Appropriate for use only in the continental US and daylight savings states, it has easily readable black Arabic numbers, black minute and hour hands, and a red sweep second hand. The frame will biodegrade in approximately 2 years in a landfill and is made with 30% post-consumer recycled content. The clear lens is shatter resistant and UV protected. Hanging hardware is included for easy installation.