If by 'based on astronomy' you mean 'based on the sun' because the sun is a star, then I agree. But, plenty of software has lots to do with the sun because they

If by 'based on astronomy' you mean 'based on the sun' because the sun is a star, then I agree. But, plenty of software has lots to do with the sun because they have to interact with people, and people like to be synchronized with the sun. If you don't want software to interact with humans, or you only care about duration rather than human datetime, then go ahead and use UT1. However, as long as your interacting with people, you're going to need to fix people first. You should start with these primers if you're going to fix how humans interact with time: - https://qntm.org/abolish https://qntm.org/abolish - https://qntm.org/continuous https://qntm.org/continuous