DateTime

Provides current date and time with configurable formats and timezones.

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A Model Context Protocol (MCP) server that provides tools to get the current date and time in various formats. This is a Python implementation of the datetime MCP server, demonstrating how to build MCP servers using the Python SDK.

pypi.org/project/takanarishimbo-datetime-mcp-server/

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English | 日本語 | README

DateTime MCP Server

A Model Context Protocol (MCP) server that provides tools to get the current date and time in various formats. This is a Python implementation of the datetime MCP server, demonstrating how to build MCP servers using the Python SDK.

Features

  • Get current date and time in multiple formats (ISO, Unix timestamp, human-readable, etc.)
  • Configurable output format via environment variables
  • Timezone support
  • Custom date format support
  • Simple tool: get_current_time

Usage

Choose one of these examples based on your needs:

Basic usage (ISO format):

{ "mcpServers": { "datetime": { "command": "uvx", "args": ["takanarishimbo-datetime-mcp-server"] } } }

Human-readable format with timezone:

{ "mcpServers": { "datetime": { "command": "uvx", "args": ["takanarishimbo-datetime-mcp-server"], "env": { "DATETIME_FORMAT": "human", "TIMEZONE": "America/New_York" } } } }

Unix timestamp format:

{ "mcpServers": { "datetime": { "command": "uvx", "args": ["takanarishimbo-datetime-mcp-server"], "env": { "DATETIME_FORMAT": "unix", "TIMEZONE": "UTC" } } } }

Custom format:

{ "mcpServers": { "datetime": { "command": "uvx", "args": ["takanarishimbo-datetime-mcp-server"], "env": { "DATETIME_FORMAT": "custom", "DATE_FORMAT_STRING": "%Y/%m/%d %H:%M", "TIMEZONE": "Asia/Tokyo" } } } }

Configuration

The server can be configured using environment variables:

DATETIME_FORMAT

Controls the default output format of the datetime (default: "iso")

Supported formats:

  • iso: ISO 8601 format (2024-01-01T12:00:00.000000+00:00)
  • unix: Unix timestamp in seconds
  • unix_ms: Unix timestamp in milliseconds
  • human: Human-readable format (Mon, Jan 1, 2024 12:00:00 PM UTC)
  • date: Date only (2024-01-01)
  • time: Time only (12:00:00)
  • custom: Custom format using DATE_FORMAT_STRING environment variable

DATE_FORMAT_STRING

Custom date format string (only used when DATETIME_FORMAT="custom") Default: "%Y-%m-%d %H:%M:%S"

Uses Python's strftime format codes:

  • %Y: 4-digit year
  • %y: 2-digit year
  • %m: 2-digit month
  • %d: 2-digit day
  • %H: 2-digit hour (24-hour)
  • %M: 2-digit minute
  • %S: 2-digit second

TIMEZONE

Timezone to use (default: "UTC") Examples: "UTC", "America/New_York", "Asia/Tokyo"

Available Tools

get_current_time

Get the current date and time

Parameters:

  • format (optional): Output format, overrides DATETIME_FORMAT env var
  • timezone (optional): Timezone to use, overrides TIMEZONE env var

Development

  1. Clone this repository
    git clone https://github.com/TakanariShimbo/uvx-datetime-mcp-server.git
    cd uvx-datetime-mcp-server
  2. Install dependencies using uv
    uv sync
  3. Run the server
    uv run takanarishimbo-datetime-mcp-server
  4. Test with MCP Inspector (optional)
    npx @modelcontextprotocol/inspector uv run takanarishimbo-datetime-mcp-server

Publishing to PyPI

This project uses PyPI's Trusted Publishers feature for secure, token-less publishing via GitHub Actions.

1. Configure PyPI Trusted Publisher

  1. Log in to PyPI (create account if needed)
  2. Navigate to Publishing Settings
  3. Add GitHub Publisher
    • Click "Add a new publisher"
    • Select "GitHub" as the publisher
    • Fill in:
      * Owner: TakanariShimbo (your GitHub username/org)
      * Repository: uvx-datetime-mcp-server
      * Workflow name: pypi-publish.yml
      * Environment: pypi (optional but recommended)
    • Click "Add"

2. Configure GitHub Environment (Recommended)

  1. Navigate to Repository Settings
    • Go to your GitHub repository
    • Click "Settings" → "Environments"
  2. Create PyPI Environment
    • Click "New environment"
    • Name: pypi
    • Configure protection rules (optional):
      * Add required reviewers
      * Restrict to specific branches/tags

3. Setup GitHub Personal Access Token (for release script)

The release script needs to push to GitHub, so you'll need a GitHub token:

  1. Create GitHub Personal Access Token
    • Go to https://github.com/settings/tokens
    • Click "Generate new token" → "Generate new token (classic)"
    • Set expiration (recommended: 90 days or custom)
    • Select scopes:
      * ✅ repo (Full control of private repositories)
    • Click "Generate token"
    • Copy the generated token (starts with ghp_)
  2. Configure Git with Token

Option 1: Use GitHub CLI (recommended)

gh auth login

Option 2: Configure git to use token

git config --global credential.helper store

Then when prompted for password, use your token instead

4. Release New Version

Use the release script to automatically version, tag, and trigger publishing:

First time setup

chmod +x scripts/release.sh

Increment patch version (0.1.0 → 0.1.1)

./scripts/release.sh patch

Increment minor version (0.1.0 → 0.2.0)

./scripts/release.sh minor

Increment major version (0.1.0 → 1.0.0)

./scripts/release.sh major

Set specific version

./scripts/release.sh 1.2.3

5. Verify Publication

  1. Check GitHub Actions
    • Go to "Actions" tab in your repository
    • Verify the "Publish to PyPI" workflow completed successfully
  2. Verify PyPI Package

Release Process Flow

  1. release.sh script updates version in all files
  2. Creates git commit and tag
  3. Pushes to GitHub
  4. GitHub Actions workflow triggers on new tag
  5. Workflow uses OIDC to authenticate with PyPI (no tokens needed!)
  6. Workflow builds project and publishes to PyPI
  7. Package becomes available globally via pip install or uvx

Code Quality

This project uses ruff for linting and formatting:

Run linter

uv run ruff check

Fix linting issues

uv run ruff check --fix

Format code

uv run ruff format

Project Structure

uvx-datetime-mcp-server/
├── src/
│   ├── __init__.py              # Package initialization
│   ├── __main__.py              # Main entry point
│   └── server.py                # Server implementation
├── pyproject.toml               # Project configuration
├── uv.lock                      # Dependency lock file
├── .github/
│   └── workflows/
│       └── pypi-publish.yml     # PyPI publish workflow with Trusted Publishers
├── scripts/
│   └── release.sh               # Release automation script
├── docs/
│   ├── README.md                # This file
│   └── README_ja.md             # Japanese documentation
└── .gitignore                   # Git ignore file

License

MIT

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