It may well be worthwhile to center the business day so as to maximize the benefit of daylight. The clock then should be kept set for this benefit. It should be fixed on Daylight Saving Time. The answer for some is a matter of life style. They find it unappealing to have darkness in the morning.
Standard lime makes winter mornings lighter at the normal clock waking hour.
And, indeed, there are more dark Standard-hours at day's end. There are less dark ones at day's start. The Standard Time off-center business day originally evolved to permit sleeping late. Daylight Saving Time eliminates this achievement. Many of us have humility before nature's complexity.