happytails.ai

Multi-city meeting planner

Open Multi-city meeting planner on Happytails.ai. This view has the same page content and links, with explicit tool capabilities. Read the processing notes before using a tool.

Tool capabilities

{
  "id": "multi-city-meeting-planner",
  "category": "date-time-tools",
  "built": true,
  "requirements": "2 to 12 cities, up to 5,000 characters and 92 days. Everything is calculated on your device in the background. Downloads: CSV, JSON report and an iCalendar (.ics) file.",
  "implementation": {
    "fields": [
      {
        "key": "from",
        "label": "First date (empty for today)",
        "value": "",
        "type": "date"
      },
      {
        "key": "to",
        "label": "Last date (empty for two weeks)",
        "value": "",
        "type": "date"
      },
      {
        "key": "referenceZone",
        "label": "List the days in this time zone",
        "value": "UTC",
        "type": "text"
      }
    ],
    "registrationFamily": "travel-and-meeting-time",
    "inputMaxLength": 5000,
    "inputErrorCode": "TRAVEL_AND_MEETING_TIME_TOO_LONG_MEETING",
    "note": "Shared working hours are found on this device for 2 to 12 cities and up to 92 days, using the time zone rules built into your browser.",
    "experience": {
      "automatic": false,
      "single": false,
      "inputMaxLength": 5000,
      "inputMode": "text",
      "label": "Cities as CSV",
      "placeholder": "city,time_zone,start,end,days",
      "help": "Times are local 24-hour HH:MM. Days are MO to SU separated by spaces, or empty for Monday to Friday. Up to 5,000 characters. Review the settings before running.",
      "helpParts": [
        "Times are local 24-hour HH:MM. Days are MO to SU separated by spaces, or empty for Monday to Friday.",
        "Up to 5,000 characters.",
        "Review the settings before running."
      ],
      "action": null
    },
    "mode": "explicit",
    "interactive": false
  },
  "execution": "Browser interface",
  "api": null,
  "browser_agent": {
    "supported": true,
    "name": "run_current_tool",
    "discovery": "WebMCP on the human page in a supporting browser",
    "verification": "See audit/API-AUDIT.md; availability is not verification"
  }
}

Page guide

Find the hours when working days in several cities overlap. Each day lists the shared window in every city's local time and flags days near a clock change.

How to use Multi-city meeting planner
  1. Paste one row per city with its time zone, working hours and working days.
  2. Choose the first and last date and the time zone used to list the days.
  3. Review the shared windows and check any day flagged as near a clock change.
  4. Download the CSV, the JSON report or a calendar file with each shared window.

Useful next steps

Time zone converterMeeting costDate difference

How the overlap is found

For each day in the listing time zone, each city's working hours on its own local working days are converted to exact instants and intersected. Only time when every city is working counts. Working hours that end at or before they start run overnight.

Clock changes

A day is flagged when any city, or the listing time zone, has a different UTC offset on the day before and the day after. Shared windows can move by an hour around these dates, so check them before you book.

Limits

Time zone rules come from your browser and can differ slightly between browsers. Public holidays are not known; remove those dates yourself.