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Claude.ai Date Math working_hours_overlap

How to: Claude.ai Date Math working_hours_overlap

client:Claude.ai transport:streamable-http tool:working_hours_overlap

Add Date Math to Claude.ai

  1. 01

    Open Settings → Connectors → Add custom connector and merge this in. Keep any servers already there.

https://date-math.datemath.workers.dev/mcp
  1. 02

    Save the file and restart Claude.ai.

  2. 03

    Ask for something working_hours_overlap does. Claude.ai lists the server's tools on connect and calls working_hours_overlap itself — you do not invoke it by name.

  3. 04

    If nothing happens, check the server is running and that Date Math's identifier in your config matches the one above exactly.

Claude on the web takes a remote URL and completes OAuth in the browser. For a packaged server use Claude Desktop or Claude Code instead. Claude.ai docs

Set these first

Date Math will not start until these are set, so working_hours_overlap never becomes available.

  • DATE_MATH_PRIVATE_KEY
  • DATE_MATH_MAX_PRICE

Same tool, other clients

This list was read from the server itself, by connecting to it and calling tools/list on 14 November 2026. It is what the server actually exposes, not what its listing claims.

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.