{
  "id": "time-and-date-difference-calculator",
  "version": "1.0.0",
  "name": "Time and Date Difference Calculator",
  "shortName": "Time and Date Difference",
  "description": "Calculate signed elapsed time between two dates and clock times.",
  "category": "Date & Time",
  "categorySlug": "date-time",
  "keywords": [
    "time",
    "and",
    "date",
    "difference",
    "calculator",
    "time and date difference calculator"
  ],
  "status": "live",
  "workStatus": "pending",
  "reviewStatus": "pending",
  "migrationStatus": "new",
  "engine": "native",
  "creator": null,
  "reviewer": null,
  "quality": {
    "availability": "live",
    "technicalReviewRecord": "/reviews/time-and-date-difference-calculator.json",
    "qualifiedReview": "pending",
    "qualifiedReviewer": null,
    "qualifiedReviewDate": null,
    "formulaVersion": "1.0.0",
    "referenceCoverage": "references-pending",
    "releaseTestScope": "Catalog and regression checks are not a professional formula audit; consult release evidence.",
    "historicalMetadataDate": "2026-09-01",
    "historicalMetadataNotice": "The imported date is not evidence of a completed human review."
  },
  "urls": {
    "page": "/calculator/time-and-date-difference-calculator/",
    "definition": "/calculator/time-and-date-difference-calculator/definition.json",
    "schema": "/calculator/time-and-date-difference-calculator/schema.json",
    "llms": "/calculator/time-and-date-difference-calculator/llms.txt",
    "legacyDefinition": "/calculator/time-and-date-difference-calculator.json"
  },
  "queryExample": "https://askcalculators.com/calculator/time-and-date-difference-calculator/?startDate=2026-09-01&startTime=09%3A00&endDate=2026-09-03&endTime=17%3A30",
  "queryParameters": {
    "startDate": {
      "label": "Start date",
      "type": "date",
      "required": true,
      "default": "2026-09-01"
    },
    "startTime": {
      "label": "Start time",
      "type": "time",
      "required": true,
      "default": "09:00"
    },
    "endDate": {
      "label": "End date",
      "type": "date",
      "required": true,
      "default": "2026-09-03"
    },
    "endTime": {
      "label": "End time",
      "type": "time",
      "required": true,
      "default": "17:30"
    }
  },
  "inputs": [
    {
      "id": "startDate",
      "label": "Start date",
      "type": "date",
      "required": true,
      "defaultValue": "2026-09-01"
    },
    {
      "id": "startTime",
      "label": "Start time",
      "type": "time",
      "required": true,
      "defaultValue": "09:00"
    },
    {
      "id": "endDate",
      "label": "End date",
      "type": "date",
      "required": true,
      "defaultValue": "2026-09-03"
    },
    {
      "id": "endTime",
      "label": "End time",
      "type": "time",
      "required": true,
      "defaultValue": "17:30"
    }
  ],
  "outputs": [
    {
      "id": "duration",
      "label": "Elapsed duration",
      "format": "text",
      "primary": true
    },
    {
      "id": "totalDays",
      "label": "Total days",
      "format": "number",
      "digits": 8
    },
    {
      "id": "totalHours",
      "label": "Total hours",
      "format": "number",
      "digits": 6
    },
    {
      "id": "totalMinutes",
      "label": "Total minutes",
      "format": "number",
      "digits": 3
    },
    {
      "id": "totalSeconds",
      "label": "Total seconds",
      "format": "integer"
    }
  ],
  "formula": {
    "expression": "elapsed milliseconds = end date-time − start date-time"
  },
  "examples": [
    {
      "label": "Reproducible default-input example (not a personal recommendation)",
      "inputs": {
        "startDate": "2026-09-01",
        "startTime": "09:00",
        "endDate": "2026-09-03",
        "endTime": "17:30"
      }
    }
  ],
  "sources": []
}