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Cron Expression Tester

Test cron expressions and preview the next execution schedule. Supports standard 5-field cron syntax with human-readable descriptions. All processing stays in your browser.

Cron expression

Format: minute hour day-of-month month day-of-week

Human-readable description

Enter a cron expression and click Preview.

Next 10 scheduled runs

                    Click Preview to see the schedule.
                

🤖 AI Prompt

Ask an AI to help design a cron schedule:

Design cron schedules for: 1) A database backup that runs every 6 hours during business hours (8am-8pm weekdays) 2) A daily report that generates at 7am but waits until the backup finishes 3) A cleanup job that deletes old logs every Sunday at 3am 4) A monitoring check that runs every 2 minutes but only on weekdays. Show the optimized cron expressions and explain any trade-offs.