Setting a timer for outsidelights

I have asked this question before but with no successful conclusion.
I have now three hue appear out side lights that I want to come on and go off on the hue timer if possible. At the moment I have one automation that is just to turn the lights off at 00.30. When I go on the Hue app every night it has turned the lights to 0% and a yellow colour but the lights have to be turned back on select a colour and then brightness.
Please someone help. Thanks in advance.