They suggest world wide UTC, saying that the hours of noon, sunset, and sunrise don't really matter. But the real problem of UTC around Australia isn't the hour

They suggest world wide UTC, saying that the hours of noon, sunset, and sunrise don't really matter. But the real problem of UTC around Australia isn't the hours but the date. It is really convenient that the date changes whilst we all sleep. It makes 'today' and 'tomorrow' weird.