The underlying astronomy library thought that minus signs were useful for arithmetic (!), so "1999-05" means "five months before the beginning of 1999." I have removed this distinction in my version of the library so they are now simply a separator, exactly as you suggest. I am releasing 3.7.5.1 tonight that incorporates this improvement. Thank you!
The underlying astronomy library thought that minus signs were useful for arithmetic (!), so "1999-05" means "five months before the beginning of 1999." I have removed this distinction in my version of the library so they are now simply a separator, exactly as you suggest. I am releasing 3.7.5.1 tonight that incorporates this improvement. Thank you!