Epoch Calculator MCP MCP server

A free, stateless Model Context Protocol server providing DST-correct time math tools for AI agents. It offers eight tools including current time retrieval, timestamp conversion, date parsing, time zone conversion, duration calculation, epoch arithmetic, cron schedule explanation, and holiday countdowns. It uses the IANA time zone database to ensure accuracy across daylight-saving transitions and leap years without requiring API keys or authentication.

Endpoint and access

No sign-in: your client connects and lists tools immediately, with no account or key.

No sign-inEndpoint checked 2026-10-05Operated by Epoch Calculator

MCP endpoint (Streamable HTTP)

https://epochcalc.com/mcp

Vendor documentation

What you can do with it

Convert Unix timestamps to human-readable dates with DST awareness
Calculate exact durations between two dates including weekdays
Explain cron expressions and list next run times in specific time zones
Countdown days until specific holidays or events

Tools advertised by the last live check:

time_now
convert_timestamp
parse_datetime
convert_timezone
date_duration
epoch_math
cron_next_runs
days_until

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers a Streamable HTTP server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http epoch-calculator-mcp https://epochcalc.com/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add epoch-calculator-mcp --url https://epochcalc.com/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable epoch-calculator-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "epoch-calculator-mcp": {
      "url": "https://epochcalc.com/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure). The type must be streamableHttp for a remote HTTP server.

Cline configuration

{
  "mcpServers": {
    "epoch-calculator-mcp": {
      "type": "streamableHttp",
      "url": "https://epochcalc.com/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start epoch-calculator-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "epoch-calculator-mcp": {
      "type": "http",
      "url": "https://epochcalc.com/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http epoch-calculator-mcp https://epochcalc.com/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

{
  "mcpServers": {
    "epoch-calculator-mcp": {
      "url": "https://epochcalc.com/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "epoch-calculator-mcp": {
      "serverUrl": "https://epochcalc.com/mcp"
    }
  }
}

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