← Cron Expression Builder

Cron examples

Ready-made cron expressions for common schedules. Each one opens the builder preconfigured, explains the schedule, and previews its next run times.

By interval

Hourly

Daily

Weekly

Monthly and beyond

Open the full cron expression builder to create any schedule, or view all tools.

Use Clean.tools from your AI agent

This tool is also explain_cron on the Clean.tools MCP server — the same engine, callable by your AI agent directly. No key, no signup: requests are processed in memory and request contents are never stored.

Claude Code
claude mcp add --scope user --transport http clean-tools https://mcp.clean.tools/mcp
Any MCP client (streamable HTTP, authless)
https://mcp.clean.tools/mcp

Every tool, the REST API, and setup for Cursor, Claude Desktop, VS Code & more →