It is an Almanac timer which is used for switching electrical appliances like street lamps, garden lights, corridor lights, neon signs etc. according to sunrise and sunset time. User need to just enter longitude lattitude and twilite time of the place and rest will be done by the timer for ever.This Almanac time switch has added advantage over daily dial or weekly timers.Timer provides one / three outputs to drive contactors of different ratings. It also has manual override facility for emergencies, chacking and maintenence of street lights. Password protected to prevent unauthorized access.