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BurntSushi/bttf

View on GitHub ↗ ★ 766 Rust

A command line tool for datetime arithmetic, parsing, formatting and more.

9 mentions on Hacker News by 2 people: 3 stories, 6 comments · first 2025-05-12 · latest 2026-05-28

Mentions per year 9 mentions · busiest year 2026 (5)
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  1. You win the naming contest. The project has been renamed: https://github.com/BurntSushi/bttf/pull/14
    comment by burntsushi · 2026-05-28 · in Bttf is a command line datetime Swiss army knife
  2. …explains why I was okay with naming it Biff. In any case, I've renamed the project to bttf: https://github.com/BurntSushi/bttf/pull/14
    comment by burntsushi · 2026-05-28 · in Bttf is a command line datetime Swiss army knife
  3. …AM EST Tue, Apr 13, 2027, 11:15:11 AM EDT Tue, May 11, 2027, 11:15:11 AM EDT More examples here: https://github.com/BurntSushi/biff/blob/master/GUIDE.md#date... Implementing the RFC 5545 recurrence rules was quite a lot of fun:…
    comment by burntsushi · 2026-05-28 · in Bttf is a command line datetime Swiss army knife
  4. Yes! dateutils is great! I have a comparison about it here: https://github.com/BurntSushi/biff/blob/master/COMPARISON.md... The comparison with GNU date is also likely informative.
    comment by burntsushi · 2026-05-28 · in Bttf is a command line datetime Swiss army knife
  5. Have you seen Biff? It can do this and it will use your system's tzdb, unlike chrono. https://github.com/BurntSushi/biff
    comment by burntsushi · 2025-12-22 · in Show HN: Nanji – A minimal Rust CLI for timezone conversion
  6. Also https://github.com/burntsushi/biff
    comment by landr0id · 2025-05-20 · in Biff – a batteries-included web framework for Clojure