[ANN] nowandlater - fast natural language date and time parsing - no regex

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Nick Galbreath

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Apr 1, 2026, 10:05:37 PM (2 days ago) Apr 1
to golang-nuts
nowandlater is a fast natural date and time parser to native time.Time.


- 500ns a call
- stdlib only - no regex - no parser/generator
- supports 9 langages out of the box - adding more takes 15 minutes
- extensible to other date and time formats with no additional perfomance cost
- at or near parity with other parsers like python's dateparser.

You might know me as the "libinjection guy" (a library for detecting SQLi attacks),  founder of Signal Sciences.  I used same principles as libinjection but now applied to time and date parsing. For the backstory on how it was made see

Enjoy, and PRs welcome.

Nick Galbreath
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