float_duration vs humantime vs jiff

Floating-point Duration support. Provides quantification for spans of time. Unlike the standard std::time or the chrono crate, this crate aims to provide a fully featured Duration type which exposes and uses floating-point values instead of integer ones.

A parser and formatter for std::time::{Duration, SystemTime}

A date-time library that encourages you to jump into the pit of success. This library is heavily inspired by the Temporal project.