Welcome to Calendar0 Documentation
Learn how to use Calendar0 AI assistant to manage your calendar
Calendar0 is your AI-powered calendar assistant that lives in your system tray. This documentation will help you get the most out of Calendar0's features.
What is Calendar0?
Calendar0 is a lightweight menubar application that provides instant access to your calendar with powerful AI capabilities. Schedule meetings, check availability, and manage your calendar using natural language - all without opening a browser.

Key Features
- AI Scheduling - Use natural language to create events: "Lunch with Sarah tomorrow at 1pm"
- Instant Availability - See colleague free/busy status from Google Workspace or Microsoft 365
- System Tray Integration - Always accessible, never buried in browser tabs
- Real-Time Sync - Google Calendar, Microsoft Outlook, and Apple Calendar stay perfectly synchronized
- Smart Notifications - Join meetings with one click