The workshop · The everyday corner
The everyday cornerWork out dates, gaps and deadlines
Every calculation is done at noon universal time, never at local midnight: at midnight a clock change shifts the date by a whole day, and that is the mistake that makes a deadline slip with no visible cause.
No input: this tool calculates
This tool asks for no file and no text: it CALCULATES, on your device. Pick the calculation and type your dates just below.
What this tool builds is never transmitted
The result is built inside your browser, on your device, and it is sent nowhere. Nobody but you ever sees it, and nothing is kept once the tab is closed. No server ever had to know it.
Checkable in ten seconds, without taking our word for it:
- Open your browser's inspector: the F12 key (or Ctrl+Shift+I, or Cmd+Option+I on a Mac).
- Go to the “Network” tab, then clear the list.
- Run the tool on this page, as many times as you like. The list stays empty: no request goes out.
- To go further: cut your connection, and do it again. The tool still builds.
This absence of requests is also checked BY MACHINE before every release: a lock drives a real browser, processes a real file, and refuses to publish if a single byte goes out.
Going further
This tool takes neither a file nor a text. Dates are typed as year-month-day, the international standard order, because it carries no ambiguity and sorts itself.
VerifyThe proof, step by stepThe network inspector check, explained one gesture at a time, with screenshots.
The cornerThe everyday cornerThe other tools in this corner of the workshop.
UnderstandHow this is builtThe formats actually handled, browser by browser, and what we ruled out.