All CTD controllers have a built-in annual calendar with the daily times of sunrise and sunset. To be able to use this, it is sufficient to assign a bistable output via the setup screen and to select the location that is closest to the installation.
!! After you have submitted the changes via the Red upload arrow, it is important to restart the CTD to load the current times !!!
Please contact an advisor.
They like to take time to tackle your problem together!