The article would be more convincing if it used more examples of dates in the future. For timestamps (i.e. recording things that happened), I still believe all

The article would be more convincing if it used more examples of dates in the future. For timestamps (i.e. recording things that happened), I still believe all you need is UTC and a location. The bank example is just a matter of poor UX, not lost information (surely the bank could map transactions to a local time zone if they wanted).