I once (around 1983) met someone who had an astrological (astronomical) watch, that showed 'time' depending on the position of the earth with respect to the zodiac. He believed that periods when a sign would appear on the horizon (and another disappear) were periods that you beter could not start another activity. I am not sure if it was one made by Jaap Venker. Jaap Venker made 1500 of these watchs which now sell for hunderds of Euro/USD.

I think having a clock that depends on the position of the earth with respect to the center of our galaxy is an interesting idea.