As another interesting idea: How about abolishing time zones so a day is evenly distributed around the earth. I.E. your clock is slightly faster/slower than you

As another interesting idea: How about abolishing time zones so a day is evenly distributed around the earth. I.E. your clock is slightly faster/slower than your east/west neighbors clock is. And since your phone is a computer with gps it can smoothly add and remove time as you travel east/west.