Controller 12V for solar actuator - energy efficient, 2 channels, time in seconds, finished module

I am looking for a "current-saving" solution for controlling a 12 V actuator.
The actuator is supposed to turn the solar panel, however, it is supposed to do so on a timed cyclic-daily basis. The best solution I could think of would be 2 channels controlling relays. It would work like this: one channel pushes the actuator every couple of hours for a few seconds in the "behind the sun" direction. When the sun goes down, the second channel triggers a sequence of relays to return the actuator to its "in the morning" position. The actuator has built-in limiters.
The project has grown a bit and started to cost money, so price matters too.
I was considering simple watering programmers. They are fairly cheap and you can rewire the valve outputs to relays, but the problem is the minimum tripping time (1 min). I've also looked at LED controllers - over-engineered and often current-consuming. Controlling windows would exhaust the topic, as they can be programmed to tilt, but I haven't found anything cheap.
Priority, is energy efficiency, 12 volts, minimum 2 channels, simplicity, price and time in seconds. I don't want to build this, I need a ready-made one as a spare part in case of "W".

I came up with an idea to use sundials, e.g. PCZ-521.3 PLUS, because they work not only in a weekly cycle of up to 500 operations (steps) but also in a yearly cycle synchronised with the sun, which would free you from the weekly adjustment of the hourly cycle for your application in order to keep up with the control of the sun. I have been through a similar topic and they are suited to this like nothing else precisely because of the year-round synchronisation of the system with the sun. The issue to be resolved would be to replace only the original 230V supply with your 12VDC supply which I guess would not be a problem for an electronics engineer? It's a pity I can't remember what voltage the relay coil in this timer is, but possibly replacing it too wouldn't be a problem after all - go through the manual and would that suit you? PCZs are programmed manually as well as remotely via NFC and their operation and advantages are probably known and appreciated by many of us/us.... This way you would come into possession of an almost "ready-made" if not ready-made when you have access to 230V power supply as well.... For me, the cost of this device in relation to freedom from weekly time correction is quite acceptable. As for the current saving I do not comment, because I have not researched, for my application it does not matter with the convenience I have obtained....

I was considering them.I even had something similar in the utility room for ventilation control.
The one you suggested has one channel (the 522 has two) but the minimum cycle is one minute.
It would be easy to make the system to display one second, two seconds or any number of cycles instead, but I didn't want to extend or rework it. It has to work far away from home in almost field conditions, so I am going for simplicity.
I'm not ruling anything out, but if anything, it's a last resort.
Thanks for your interest.