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Cron Expression Parser

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

Type a 5-field cron expression and get a plain-English description plus the next 10 run times in your browser's local timezone (shown explicitly) — not just 5, and not silently assuming server time.

How it works

  1. Type a standard 5-field cron expression (minute hour day month weekday)
  2. A plain-English description appears — "At 09:00, on Monday, Tuesday..."
  3. The next 10 run times are listed in your local timezone

Frequently asked questions

What cron format does this support?

The standard 5-field format (minute, hour, day of month, month, day of week), including ranges (1-5), lists (1,3,5), steps (*/15), and the * wildcard.

What timezone are the next run times in?

Your browser's local timezone, shown explicitly — not the server's, since this runs entirely in your browser.

Is my cron expression sent anywhere?

No — parsing and calculating run times happens entirely in your browser.

#CronExpressionParser#CrontabGuruAlternative#CronNextRunTimes#CronExpressionExplainedPlainEnglish

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From the blog

crontab.guru shows the next 5 run times. When a schedule misbehaves, that's not enough.
dev

crontab.guru shows the next 5 run times. When a schedule misbehaves, that's not enough.

Debugging a cron job that fires at the wrong time usually means scrolling forward to spot the pattern. Five run times often isn't enough runway to see it.

2026-08-30

Update history

  • 2026-08-30 Added: a cover image (a gear/clock hybrid with a calendar and a trail of scheduled-time clock icons) — used as the card thumbnail, social share image, and blog title image.
  • 2026-08-30 Launched: live cron expression parser (no button) — plain-English description plus the next 10 run times in your browser's local timezone (shown explicitly), entirely client-side.