What time it is, is just made up, it's something we can decide freely through social power, as evidenced by timezones and daylight savings and leap seconds.
Commonly the resolution is something like minutes or a few of them, that's the margin we'll typically accept for starting meetings or precision in public transport like buses.
The utility of femtoseconds in deciding what time it is seems pretty slim.
Commonly the resolution is something like minutes or a few of them, that's the margin we'll typically accept for starting meetings or precision in public transport like buses.
The utility of femtoseconds in deciding what time it is seems pretty slim.