second package:chronos

A Timespan representing a single second.

%::z (e.g., -04:00:00)

The precision used when encoding seconds to a human-readable format.

Rounds to second, millisecond, microsecond, or nanosecond

Specify number of places after decimal

a lens for accessing the timeOfDayNanoseconds field.

Convert a Timespan to its equivalent in seconds.

seconds 0-59

fraction of a second with nanosecond resolution