Some days, I wish I lived in a world less dependent on instant connectivity and more dependent on taking notice of what's happening outside. Imagine planning your year based on Solstices and Equinoxes, or your month based on the phases of the moon. Or even planning your day based on how many hours of sunlight you have.
Most of my futuristic worlds have some element of natural timekeeping or navigation built in, irrespective of their technology. Your day and year length all depend on your position in relation to your sun and the size of your planet. The pattern of stars you see at night depend on your position in the universe. So on another planet, the star signs we know and love, aren't visible. It's on my writing "to do list" to put an Earth Astrologist onto a space ship to a far away planet and watch what happens when she has to try and interpret new constellations. I'd pair her with a scientific type, who didn't believe and see what happened. (Jots notes, puts in project folder...). So many ideas... So Little Time.