(Beaver Dam) Your weekend will be one hour longer. Daylight savings time ends at 2am Sunday, when the clock goes back to 1am. Beaver Dam Fire Department Public Education Coordinator Russ Johnson says it is especially important when you set your clocks back one hour to also replace the batteries in your smoke and carbon monoxide detectors. The department is offering for a limited time, nine volt batteries free of charge. They are available at the Fire Department at 205 South Lincoln Avenue, the Watermark at 209 South Center Street and the Library at 311 North Spring Street. There is also a limited number of smoke detectors available for those who cannot afford them as well as help with installation.