Date & Time

Timezone Duration Calculator

Calculate duration, time gap, and business-day differences between two timestamps in different time zones with DST awareness

json· JSON resultOpen tool

Quick start

Call this tool from your code in three languages.

cURL

curl -X POST 'https://api.elysiatools.com/en/api/tools/timezone-duration-calculator' \
  -H 'Content-Type: application/json' \
  -d '{"startTimestamp":"2026-03-26T09:00:00-04:00","startTimeZone":"America/New_York","endTimestamp":"2026-03-27T10:30:00+08:00","endTimeZone":"Asia/Shanghai","includeBusinessDayComparison":true,"includeNaturalLanguageSummary":true}'

API reference

Send a POST request with your inputs as JSON. File parameters require a separate upload first.

Endpoint

HTTP

POST https://api.elysiatools.com/en/api/tools/timezone-duration-calculator

Parameters

Name	Type	Required	Description
startTimestamp	text	Yes	—
startTimeZone	select	No	—
endTimestamp	text	Yes	—
endTimeZone	select	No	—
includeBusinessDayComparison	checkbox	No	—

MCP integration

Add this tool to your Model Context Protocol server so AI agents can list and call it.

Server configuration

Add this block to your MCP client configuration:

mcp.json

{
  "mcpServers": {
    "elysiatools-timezone-duration-calculator": {
      "name": "timezone-duration-calculator",
      "description": "Calculate duration, time gap, and business-day differences between two timestamps in different time zones with DST awareness",
      "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=timezone-duration-calculator",
      "command": "",
      "args": [],
      "env": {},
      "isActive": true,
      "type": "sse"
    }
  }
}

List available tools

After connecting to the SSE endpoint, list the exposed tools:

tools/list

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/list"
}

Call this tool

Invoke the tool by its id, passing arguments built from its parameters:

tools/call

{
  "jsonrpc": "2.0",
  "id": 2,
  "method": "tools/call",
  "params": {
    "name": "timezone-duration-calculator",
    "arguments": {
  "startTimestamp": "2026-03-26T09:00:00-04:00",
  "startTimeZone": "America/New_York",
  "endTimestamp": "2026-03-27T10:30:00+08:00",
  "endTimeZone": "Asia/Shanghai",
  "includeBusinessDayComparison": true,
  "includeNaturalLanguageSummary": true
}
  }
}

Chain multiple tools in one session with a comma-separated toolId list, e.g. /mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp (max 20).

Questions or issues? Contact [email protected]

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