This report studies the design and construction of the timer off the electricity. To power users inside the house. The design and construction of the timer off electricity, there will be Keypad timer can set the time to cut off power supply. By the time can be set up 6 core, or 999999 minutes. And when the press * machine can work all the time. And have the shortcut keys can be used quickly by the A when press starts working immediately as time 30 minutes. The B when press starts working immediately for 60 minutes. The C when press starts working immediately for 90 minutes. The D when press starts working immediately for 120นาที. Microcontroller as the processor and the display screen pass LCD by experimental results it can be concluded that... In scheduling and follow a set time correctly.