I know sunrise/sunset data is known based on the ability to display it via a complication and the [WTHR_IS_DAY] tag, but there does not seem to be a method to use sunrise/sunset data as a tag.
Ideally, the following would be available, at a minimum:
[SUNRISE] … 0.0-23.999
[SUNSET] … 0.0-23.999
I was trying to find where it actually was, I could not find it in WFF documentation.
Only “WEATHER.IS_DAY” and “WEATHER.HOURS.{index}.IS_DAY” are somehow related to the actual time you want to display.