{
  "id": "time-calculator",
  "version": "7.0.0",
  "name": "Time Arithmetic",
  "shortName": "Time Arithmetic",
  "description": "Quickly add or subtract time values using a 24-hour clock format.",
  "category": "Date & Time",
  "categorySlug": "date-time",
  "keywords": [
    "time"
  ],
  "status": "live",
  "workStatus": "pending",
  "reviewStatus": "pending",
  "migrationStatus": "migrated",
  "migratedDate": "2026-08-18",
  "engine": "legacy-react",
  "creator": null,
  "reviewer": null,
  "quality": {
    "availability": "live",
    "technicalReviewRecord": "/reviews/time-calculator.json",
    "qualifiedReview": "pending",
    "qualifiedReviewer": null,
    "qualifiedReviewDate": null,
    "formulaVersion": "7.0.0",
    "referenceCoverage": "references-pending",
    "releaseTestScope": "Catalog and regression checks are not a professional formula audit; consult release evidence.",
    "historicalMetadataDate": "2026-08-18",
    "historicalMetadataNotice": "The imported date is not evidence of a completed human review."
  },
  "urls": {
    "page": "/calculator/time-calculator/",
    "definition": "/calculator/time-calculator/definition.json",
    "schema": "/calculator/time-calculator/schema.json",
    "llms": "/calculator/time-calculator/llms.txt",
    "legacyDefinition": "/calculator/time-calculator.json"
  },
  "queryExample": "https://askcalculators.com/calculator/time-calculator/?time1=12%3A00&time2=01%3A30&operation=%2B",
  "queryParameters": {
    "time1": {
      "label": "Initial Time (HH:MM)",
      "type": "time",
      "required": false,
      "default": "12:00"
    },
    "time2": {
      "label": "Interval to Change",
      "type": "time",
      "required": false,
      "default": "01:30"
    },
    "operation": {
      "label": "Operation",
      "type": "select",
      "required": false,
      "default": "+"
    }
  },
  "inputs": [
    {
      "id": "time1",
      "label": "Initial Time (HH:MM)",
      "type": "time",
      "defaultValue": "12:00"
    },
    {
      "id": "time2",
      "label": "Interval to Change",
      "type": "time",
      "defaultValue": "01:30"
    },
    {
      "id": "operation",
      "label": "Operation",
      "type": "select",
      "defaultValue": "+"
    }
  ],
  "outputs": [
    {
      "id": "result",
      "label": "Result",
      "format": "text",
      "primary": true
    }
  ],
  "formula": {
    "expression": "Times are converted to seconds, added or subtracted, then normalized back to hours, minutes, and seconds."
  },
  "examples": [
    {
      "label": "Reproducible default-input example (not a personal recommendation)",
      "inputs": {
        "time1": "12:00",
        "time2": "01:30",
        "operation": "+"
      }
    }
  ],
  "sources": []
}