{
  "ok": true,
  "calculator": "date-difference",
  "inputs": {
    "end_date": "2026-09-30",
    "start_date": "2026-09-01"
  },
  "result": {
    "signed_days": 29,
    "absolute_days": 29,
    "end_is_on_or_after_start": true
  },
  "formula": "Calendar-day difference = end date − start date using UTC calendar dates.",
  "formula_version": "tncalc.date-difference.1.0.0",
  "engine_version": "6.6.1",
  "source": "https://tannerd.net/tools/date-difference-calculator/",
  "share_url": "https://tannerd.net/tools/date-difference-calculator/?end_date=2026-09-30&start_date=2026-09-01",
  "reviewed": "2026-09-01",
  "provenance": "https://tannerd.net/provenance/#date-difference",
  "validation": "https://tannerd.net/validation/",
  "citation": {
    "title": "Days Between Dates Calculator | tannerd.net",
    "url": "https://tannerd.net/tools/date-difference-calculator/?end_date=2026-09-30&start_date=2026-09-01",
    "canonical": "https://tannerd.net/tools/date-difference-calculator/"
  }
}