constructing a new system to measure time
Einstime is the watch that escapes from the socially construct time to a time which is relative and personal depending on what you do in your life and who you are.
The watch operates through counting heartbeats rather than seconds, thus a minute can be longer or shorter according to what we do and feel.
Thus, according to the Einstime time system, growing old does not mean you are running out of time, but it means you have lived many emotions because time stays long enough for anyone who will use it.
Speculative time system
App UI Design
Einstime's Twin Paradox
My life according to the Einstime System