Codeground AI scheduler tools

Cron Builder

Validate cron expressions and preview the next execution timestamps before you ship that production schedule.

AI scheduler assistant

Quick presets

Expression

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

Supports: ranges, steps, lists, wildcard, MON-FRI, JAN-DEC, and ? as wildcard.

Cron accepted. Fields -> minute: */15 | hour: 9-18 | day of month: * | month: * | day of week: 1-5

  • Minutes: 0, 15, 30, 45
  • Hours: 9, 10, 11, 12, 13, 14, 15, 16, 17, 18
  • Day-of-month: 1, 2, 3, 4, 5, 6, 7, 8 ... (31 values)
  • Months: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12
  • Day-of-week: 1, 2, 3, 4, 5

Next 10 runs

  1. 6/22/2026, 9:00:00 AM (UTC)
  2. 6/22/2026, 9:15:00 AM (UTC)
  3. 6/22/2026, 9:30:00 AM (UTC)
  4. 6/22/2026, 9:45:00 AM (UTC)
  5. 6/22/2026, 10:00:00 AM (UTC)
  6. 6/22/2026, 10:15:00 AM (UTC)
  7. 6/22/2026, 10:30:00 AM (UTC)
  8. 6/22/2026, 10:45:00 AM (UTC)
  9. 6/22/2026, 11:00:00 AM (UTC)
  10. 6/22/2026, 11:15:00 AM (UTC)

How to use this Cron Builder

Start with a plain-language schedule using Generate with AI or pick a preset. Review the generated cron, then click Validate & preview to inspect upcoming run times before using it in production jobs.

Best-practice workflow

  • Generate expression from natural language, then verify each field summary row.
  • Switch between local timezone and UTC to avoid scheduling surprises.
  • Preview 10-20 upcoming runs for month-end and weekday-only schedules.
  • Copy the run list and paste into PR notes for reviewer clarity.