which OS is good for low boot in raspberry pi

hi there, i am working on raspberry pi project. the project is to make GUI on raspberry pi. peripheral inbterface
keyboard, mouse, LAn Cable. requirement is our raspberry pi should ON/OFF in number of times in a day and for that it should on
within a second. i konw it is not possible in raspbian.
so please suggest some other OS that can ON within a second.
thank
yogesh