Cron expression parser

Free · no sign-up

Explain any cron schedule in plain English and preview the next run times.

Cron expression

Schedule

Every Monday, Tuesday, Wednesday, Thursday and Friday at 09:00

Fields

Minute

Hour

Day of month

Month

Day of week

1-5

Next runs

📖GuidesWhat is a cron expression? A plain-English guide→

Paste a cron expression and instantly see what it means in plain English plus the next times it will run. This free cron parser reads the standard five-field format (minute, hour, day-of-month, month, day-of-week) with ranges, lists, steps and names, so you can sanity-check a schedule before you commit it. Everything is computed in your browser.

✓Plain-English description of the schedule
✓The next run times, in your local timezone
✓A clear breakdown of all five fields
✓Supports ranges, lists, steps and month/day names
✓Runs in your browser — nothing is uploaded

Who it's for

Double-checking a crontab entry before deploying
Understanding a schedule someone else wrote
Learning cron syntax with instant feedback
Verifying a CI or backup job runs when expected

How it works

1Type or paste your cron expression.
2Read the plain-English schedule.
3Check the next run times below.
4Adjust the fields until it's right.

Frequently asked questions

What are the five cron fields?+

In order: minute (0–59), hour (0–23), day of month (1–31), month (1–12), and day of week (0–6, where 0 and 7 are both Sunday).

What do *, - , / and , mean?+

* is every value, a-b is a range, */n is every n-th value, and a comma lists specific values. For example */15 in the minute field means every 15 minutes.

How are day-of-month and day-of-week combined?+

If both are restricted, cron runs when either matches — a well-known quirk. If only one is set, only that one applies.

What timezone are the next runs in?+

The upcoming run times are shown in your device's local timezone, so they match what you'd expect to see locally.