Just leave the clocks alone. If people want to get home from work earlier, employers should take notice and shift the standard working hours or else offer flexible hours. The sun and the earth are not going to change, but there is no reason whatsoever that “standard” work hours need to be 9 to 5.
It was great to work for an employer who allowed Flex Time, where you could adjust your hours a couple times a year – as long as you were there during a core 6-hour period.
Of course, now with the “liberating” features of modern [un]employment, many can write their own ticket RE their daily schedules…