Check the listing for details. 7 Day Timer Digital Programmable Electric Timer Indoor with Dual Outlet Switch. Color: White, Condition: New. Listed at 24.69 USD. How to set VIVOSUN programmable digital timer1. Set current time: Press "CLOCK" and "WEEK" or "HOUR" or MIN" buttons simultaneously to adjust the day, hour and minute time.2. Set the programs: Press "PROG" button to enter the "1ON" program, and press the " WEEK", "HOUR" and "MIN" separately to choose the working day, hour and minute; Then press "PROG" button to enter "1OFF" time setting, and press the " WEEK", "HOUR" and "MIN" separately to choose the working day, hour and minute you want to turn off. Repeat these steps to enter "2ON" "2OFF" program, "3ON" "3OFF" program..The maximum setting group is 20 ON/OFF.3. Mode Switch: Press the "MODE" button to turn the timer to ON, OFF/Auto.4. Set Summer Time: Press "HOUR" and "MIN" to set daylight saving time.5. Set Anti-thief Function: Press "WEEK" and "HOUR" simuneously to enter random mode.6. Countdown Function: Press " WEEK" and "DEL" simuneously to enter countdown function.7. AM&PM Mode: Press the "MIN" and "DEL" button simuneously to switch 12/24 hour mode.