Anything that can be done in code can be done through the UI too. If there isn’t an option to choose the specific Ephemeris condition in the drop down list, choose “a given script evaluates to true” and write the condition in code. If you are using JavaScript see openHAB 3.0 my getting started notes: Rules and I’ve an example for how to call Ephemeris Actions. Just call the isBankHoliday().
