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Cron Expression Parser & Next Runs

Try for free

Validate cron expressions, explain them in plain English, and compute the next N run times in any timezone. Sanity-check schedules across many jobs at once.

Pricing

from $0.001 / cron parsed

Rating

0.0

(0)

Developer

hiper soft

Actor stats

Bookmarked

Total users

Monthly active users

13 days ago

Last modified

What it does

Validates each cron expression and flags bad ones.
Explains it in plain English (e.g. "At 09:00, Monday through Friday").
Computes the next N run times in your chosen IANA timezone.

Use cases

DevOps — audit cron schedules across many jobs and timezones.
Docs & dashboards — turn cron strings into human-readable descriptions.
Debugging — confirm exactly when a schedule will fire next.

Input

{ "expressions": ["0 9 * * 1-5", "*/15 * * * *"], "timezone": "America/New_York", "count": 5 }

Field	Type	Description
`expressions`	array	Cron expressions to validate and expand.
`timezone`	string	IANA timezone (e.g. `UTC`, `Asia/Singapore`).
`count`	integer	Upcoming run times to list per expression (1–50).

Output

Cron Expression Parser & Next Runs output — the results as a clean dataset

{ "expression": "0 9 * * 1-5", "valid": true, "humanText": "At 09:00 AM, Monday through Friday", "nextRuns": ["2026-08-17T13:00:00.000Z", "..."], "timezone": "America/New_York" }

Output schema

Field	Type	Description
`expression`	string	The cron expression.
`valid`	boolean	Whether it parsed successfully.
`humanText`	string	Plain-English description.
`nextRuns`	array	Next run times (ISO).

FAQ

Which cron syntax is supported? Standard 5-field cron plus common extensions (steps, ranges, lists).

Can I automate it? Yes — via integrations on the Apify platform and the Apify API.

Notes

Original clean-room implementation.

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