I dont think this feature exists, at least not in this format, but if I am wrong let me know.
Would it be possible to set the load output of a Smart Solar controller to be switched on, on a specific schedule, like everyday ON at 9pm until 3am etc?
Otherwise, I guess this is a feature request. I can think of it being very handy for a variety of applications.
You can use the streetlight function with a relay to program,
On till midnight, On from sunset to sunrise and midnight to sunrise. But that’s it like Ludo said it has no clock. If they were to add a RTC it would also need a battery.