Do you mean on ramp timer mode? I don't think it can go all the way off automatically --- unless you set 'moonlight' to nothing. Meaning, you press all colors all the way down to 0 and then set that lighting level to the moonlight preset. That way, when the timer cycles to moonlight, it effectively turns everything off. It's annoying, yea, because now you lose the moonlight functionality in case you wanted it.
One alternative is to add an additional cheap power timer in front of its own timer. This way, the factory ramp timer can lower it to moonlight, and then at a later time, your additional timer can turn it off completely. Then, at some time before your m1/sunrise, you turn the power back on for the ramp timer to resume the cycle. The disadvantage of this method is when the power comes on, if I remember right, the light flashes to max for about 1 second and then goes to the setting that it was turned off with -- which was moonlight in this example.
The second alternative, which I think is better, would require some electronic knowledge on your part. You can build an arduino or raspberry pi controller with an IR emitter that simulates the remote and send commands to the receiver throughout the day. This way, you can turn on, moonlight, sunrise, full day, trigger thunderstorms, sunset .. whatever you want. This is the controller I built, but it may be hard to find the parts for. https://www.plantedtank.net/forums/20...ontroller.html
If you peruse enough on these forums -- especially in the DIY forums, you may find guys with far fancier controllers. Good luck!
As far as turning it off and still having rgb on, are you pressing the moonlight button on the remote to turn it off? There's actually a power off button on the top right. Off is fully off. Moonlight is merely a preset that reflects what you intend it to be.
If you're trying to turn it off from the ramp timer itself ... I've found it to be sort of buggy. The remote is the best way.