Cronus time and tide clock provides you with a digital display of time, date and east coast tide. Time is displayed in either 12- or 24-hour mode and automatically adjusts for daylight savings. Date is displayed in month/day format. Tide counts down to east coast high or low tide in 1/2-hour increments via 12 LEDs. AC powered, with a Lithium battery back-up to maintain time and date during power outages. It can be enjoyed on its own or as a compliment to other digital instruments.