Your comment seems confused. The reference frame for counting time of day is arbitrary but the schedules of all businesses are fixed relative to this arbitrary

Your comment seems confused. The reference frame for counting time of day is arbitrary but the schedules of all businesses are fixed relative to this arbitrary reference frame as far as DST is concerned. So DST effectively shifts the hours of all businesses. Put another way, if you fix the operational hours, you are delaying sunrises and sunsets relative to business hours. Do you want more light before work or after work? That is the year-round DST question. It's not arbitrary. I want more light after work, all the time. I don't care about mornings. I have very little time to do things in the morning before work. Suggesting UTC here doesn't make much sense. The time difference is so great that businesses would need to update to new UTC hours. But what hours exactly? More specifically, what hours relative to the position of the sun in the sky? That's the same question as this year-round DST vs non-DST question. A UTC switch doesn't address the topic.