Schedules

Windmill Schedules

Schedules run scripts and flows automatically on a cron schedule.

File Naming

Schedule files use the pattern: {path}.schedule.yaml

Example: f/folder/daily_sync.schedule.yaml

Note: The path is derived from the filename, not stored in the file content.

Cron Expression Format

Windmill uses 6-field cron expressions (includes seconds):

 ┌───────────── second (0-59)
 │ ┌───────────── minute (0-59)
 │ │ ┌───────────── hour (0-23)
 │ │ │ ┌───────────── day of month (1-31)
 │ │ │ │ ┌───────────── month (1-12 or jan-dec)
 │ │ │ │ │ ┌───────────── day of week (0-6, 0=Sunday, or sun-sat)
 │ │ │ │ │ │
 * * * * * *

Common Examples:

• 0 0 0 * * * - Daily at midnight
• 0 0 12 * * * - Daily at noon