{
  "checked_at": "2026-10-15T21:36:11.324446+09:00",
  "purpose": "Three primary-source references for a small browser length/time tool",
  "entries": [
    {
      "title": "NIST length units",
      "url": "https://www.nist.gov/pml/owm/si-units-length",
      "fit": "Unit definitions and international inch/metre relationship"
    },
    {
      "title": "MDN Intl.DateTimeFormat",
      "url": "https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat",
      "fit": "Explicit time-zone display API"
    },
    {
      "title": "W3C field labels",
      "url": "https://www.w3.org/WAI/tutorials/forms/labels/",
      "fit": "Associating field labels with controls"
    }
  ],
  "limits": "Curated source list, not endorsement, comprehensive directory or official listing submission"
}