[Broken_Hippo]

This seems to be an idea that simply won't work everywhere. I can read outside at night during the summer because the sun barely goes below the horizon. In June, sunsets are around 11:30 and sunrise is at 3:00am. It really doesn't matter if you set the clock so that it rises at 7am nor not.

During the winter, 10:00am sunrises and sunsets at 14:30. The times in between June and December vary, unsurprisingly, and gaining/losing 5-6 minutes a day isn't uncommon.

On the opposite end of the spectrum, folks at the equator are having fairly standardized 12 hour days for most of the year.

We'd never know what time it is anywhere during the year (unlike time zones with or without DST), and some folks would find it seriously inconvenient.