That is not a very practical thing as the time of sunrise changes every day. However, there used to be a very practical solution, to center the clock at noon, which drifts only a few minutes over the year. The daytime then will be symmetrically around the noon point, 6am sunrise means 6pm sunset. Isn't that neat?
I think time is fundamentally analog, and our bodies are analog too in the sense that we adapt and adjust to the rising sun and bright sunlight. Clocks are wondeful, but I kind of wonder if it fits our analog round-peg bodies into square holes.
I think it would be interesting to embrace the analog.
instead of an hour for a meeting, have a amount of time to talk about something, while people have attention with biological support.
Instead of going to bed at the same time, sort of predict when your body will get tired and have a tapering of the awake portion of your time.
And matching thinking to alertness, and relaxing to its waning might be productive and pleasurable.