cron

Register an OS-level cron job that runs a JavaScript/TypeScript module on a schedule.

The module must export a default object with a scheduled(controller) method, conforming to the Cloudflare Workers Cron Triggers API.

On Linux, registers with crontab. On macOS, registers with launchd. On Windows, registers with Task Scheduler.

Cron expression syntax (5 fields: minute hour day month weekday):

• 0 and 7 both mean Sunday in the weekday field.
• Month/day names are case-insensitive (MON, Mon, Monday all work).
• Predefined nicknames: @yearly, @annually, @monthly, @weekly, @daily, @midnight, @hourly.
• When both day-of-month and day-of-week are specified (neither is *), the job runs when either field matches (POSIX cron behavior).