Isn't Sag a new Moon?
Try to avoid it the new moon. New Moons tend to be malefic due to the Sun's obscuration and combustion of the Moon.
If you want to try to time it down to the hour, try having a fixed sign for the ASC or MC. Venus and Jupiter on either angle.
Does anyone have to get that specific with stuff when starting workings for real. I know about the critical points and any major aspect that might increase power of something and often aim or as much stuff being in a sign including the moon as possible that is conductive to the working but I didn't know anything related to that really mattered that much. I thought mainly you are better off looking for a good planitary hour such as sun Jupiter or venus. But does this make a huge difference
Did you forget that the U.S. has a natal chart and was timed on purpose? Pythia uses the Gemini rising of the U.S. chart ;)
You don't have to, and no one is forcing you to. It was probably a mistake mentioning it because I know many of you are perfectionists--knowing this just adds more layers of stress for many of you.
It depends how major or minor it is. Brushing your teeth, showering, probably doesn't matter. Meditations or minor magical workings, probably not on a VoC Moon. More nuanced ones, probably care about the phases and signs of the moon. For complex projects that require plenty of work? Possibly, if you want to.
To be serious, Electional astrology has always been a major branch of astrology that deals with timing things in the most advantageous manner. Arab astrologers for instance, timed the creation of Baghdad.