Oh no not this again... Let's invert the argument: Before abolishing unified time I want to call my Uncle Steve in Melbourne. What are the working hours there

Oh no not this again... Let's invert the argument: Before abolishing unified time I want to call my Uncle Steve in Melbourne. What are the working hours there? Google tells me it is currently 7:00 to 15:00 there. It's probably best not to call right now. After abolishing unified time I want to call my Uncle Steve in Melbourne. When are the working hours there? it's 8:00 to 16:00, same as it is here, of course! Same as it is in New York, Bangalore and Hawaii, at the South Pole and on the Moon. You get the point...