Bttf is a command line datetime Swiss army knife
Summary
Bttf is a Rust-based command-line tool for datetime arithmetic, parsing, formatting and more. The README demonstrates extensive examples, explains integration with Jiff and ICU4X, and emphasizes that bttf is not POSIX-date compatible by design, offering a modern, extensible time toolkit with features like tagging datetimes in data and locale-aware formatting.