timecalc

Deterministic date, calendar, time-zone, and duration calculations. Bundles the timecalc MCP server (via npx @tigerdata/timecalc) and an Agent Skill that teaches Claude when and how to use it.

Claude Code1 Skill1 MCP serverstdio

By TigerDataLicense: Apache-2.01 GitHub starsUpdated 2 weeks ago

Directory evidence

Runtimes: Claude Code
Parsed components: 2 skill or MCP entries
Source updated: Oct 1, 2026
Manifest status: Canonical path parsed

The directory validates manifest shape and source location. It does not execute the plugin or provide a security endorsement. Review the indexing methodology →

Install timecalc for Claude Code

Installs for the current user

claude plugin marketplace add IchenDEV/agent-plugin-mkt
claude plugin marketplace update agent-plugin-marketplace
claude plugin install timecalc@agent-plugin-marketplace

Paste and run these commands in a terminal with Claude Code. They add and refresh the PluginsMP catalog, then install this plugin.

The installer fetches third-party code from the source repository shown on this page. This directory validates manifest structure and source location, but does not perform a security audit; review the manifest, components, and source before installing.

Get the source manually

$ git clone https://github.com/timescale/timecalc-mcp

Clone the source repository, then follow its setup instructions to add the plugin to a compatible client. The plugin root is plugins/timecalc/.

Plugin files

plugins/timecalc/

├── .claude-plugin/plugin.json
├── skills/timecalc/SKILL.md
└── .mcp.json

Included Skills1

timecalcskills/timecalc/SKILL.md

Use the timecalc MCP server for reliable date, calendar, time-zone, instant, and duration calculations. Activate when a user asks about now or today, adds or subtracts dates or durations, calculates elapsed or calendar time, compares dates or instants, converts time zones, inspects date fields, handles leap years or daylight-saving transitions, or verifies date math. Prefer this skill over mental or manual date arithmetic.

MCP servers1

timecalcstdio

command: npx
args: -y @tigerdata/timecalc mcp --system-context

Plugin manifests1

plugins/timecalc/.claude-plugin/plugin.json

{
  "$schema": "https://json.schemastore.org/claude-code-plugin-manifest.json",
  "name": "timecalc",
  "displayName": "timecalc",
  "description": "Deterministic date, calendar, time-zone, and duration calculations. Bundles the timecalc MCP server (via npx @tigerdata/timecalc) and an Agent Skill that teaches Claude when and how to use it.",
  "author": {
    "name": "TigerData",
    "url": "https://tigerdata.com"
  },
  "homepage": "https://github.com/timescale/timecalc-mcp#readme",
  "repository": "https://github.com/timescale/timecalc-mcp",
  "license": "Apache-2.0",
  "keywords": [
    "date",
    "time",
    "timezone",
    "duration",
    "calendar",
    "temporal",
    "mcp"
  ]
}

For maintainers

If you maintain this plugin, link to this source-backed listing from your README so users can review its manifest and indexed components.

[timecalc on Agent Plugins Marketplace](https://pluginsmp.com/plugins/timecalc)