Day Saving TimePress HOUR and MIN button simultaneously to toggle +/- 1 hour for DST mode. No need to reprogram your clock or settings. | Random ModeTurn your devices on/off randomly within 30 minutes of your chosen time by push DAY and HOUR buttons simultaneously, which gives the impression that you are at home when you are away. | Energy Saving:Once it set, the schedual will carry out instantly, so that it could help you to turn off your device when you forget it and save costs on electricity. |