Chrono

Overview

Chrono is an MCP server powered by Luxon that gives AI agents comprehensive date, time, timezone, and calendar operation capabilities. It solves the problem of AI assistants lacking reliable temporal data handling by providing real-time retrieval with microsecond precision, global timezone support across all IANA identifiers, and flexible time calculations.

Key Features

• Global Timezone Support — Work with all IANA timezone identifiers, convert times across timezones, and format output in ISO, RFC2822, SQL, locale-aware, or custom formats
• Time Calculations — Add or subtract durations and calculate differences between dates with type-safe Zod validation
• Token-Optimized Output — Dynamically shaped responses that maximize information density while minimizing token usage for efficient AI interactions
• Easy Integration — Standard MCP protocol with both stdio and HTTP server modes, configurable via npx for Claude Code, Cursor, and other MCP clients

Who is this for?

Developers and AI agent builders who need their assistants to handle temporal data accurately — whether that means converting meeting times across timezones, calculating date ranges, or formatting timestamps for different systems. Particularly useful for applications where precise, real-time date and time operations are critical.