{
  "schemaVersion": "1.0",
  "product": {
    "name": "TimeZoneCentral",
    "canonicalUrl": "https://timezonecentral.com/",
    "category": "world clock and time zone meeting planner",
    "publisher": {
      "name": "Dynamic Foundries",
      "legalForm": "French SASU",
      "registry": "RCS Paris 102 801 206",
      "url": "https://dynamic-foundries.com/"
    }
  },
  "capabilities": [
    "show the current time in browser-supported IANA zones",
    "convert a selected local date and time across up to six zones",
    "highlight a neutral 09:00 to 17:00 working-hour window",
    "suggest the candidate hour that fits the most selected zones",
    "create a shareable URL containing the date, time and zone identifiers",
    "explain common time zone abbreviations and the UTC/GMT distinction"
  ],
  "calculationContract": {
    "execution": "Time calculations run in the visitor's browser.",
    "implementation": "The site uses JavaScript Intl.DateTimeFormat with named time zones.",
    "dataFreshness": "The installed browser or runtime supplies the time-zone rules; users should keep it updated and recheck important future dates after government rule changes.",
    "dstGap": "A selected local time that does not exist during a forward clock change is rejected.",
    "dstOverlap": "When a backward clock change repeats a local time, the planner selects the earlier matching instant and displays a warning.",
    "workingHours": "Green means 09:00 through 16:59 local time. This is a visual default, not participant availability."
  },
  "privacy": {
    "accountRequired": false,
    "serverSideMeetingStorage": false,
    "shareLinkFields": ["date", "time", "reference zone", "comparison zones stored in a URL fragment"],
    "personalDetailsRequested": false,
    "analytics": "Google Analytics loads only after consent. The configured analytics page location excludes URL parameters, including the planner fragment."
  },
  "commercial": {
    "price": 0,
    "currency": "USD",
    "signupRequired": false,
    "advertisingOnSite": false
  },
  "limitations": [
    "The site does not run its own copy of the IANA database or promise that a visitor's browser has the latest release.",
    "Working-hour colors do not account for holidays, personal schedules or local business customs.",
    "The clock reflects the visitor device's system time.",
    "Future civil-time rules can change after a plan is shared."
  ],
  "primaryRoutes": {
    "worldClock": "https://timezonecentral.com/",
    "meetingPlanner": "https://timezonecentral.com/meeting-planner",
    "abbreviations": "https://timezonecentral.com/time-zone-abbreviations",
    "utcVsGmt": "https://timezonecentral.com/utc-vs-gmt",
    "about": "https://timezonecentral.com/about"
  },
  "referenceSources": [
    "https://www.iana.org/time-zones",
    "https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat/DateTimeFormat",
    "https://www.nist.gov/pml/time-and-frequency-division/how-utcnist-related-coordinated-universal-time-utc-international",
    "https://www.gov.uk/when-do-the-clocks-change"
  ],
  "lastReviewed": "2026-09-10"
}