CronKit

0 21 * * * explained

At 09:00 PM

At 09:00 PM
The cron expression 0 21 * * *. · 5-field cron

Next 5 runs (UTC)

#Run time (UTC)When
1Wed, Sep 2, 2026, 21:00:00 UTCin 14h 6m
2Thu, Sep 3, 2026, 21:00:00 UTCin 1d 14h
3Fri, Sep 4, 2026, 21:00:00 UTCin 2d 14h
4Sat, Sep 5, 2026, 21:00:00 UTCin 3d 14h
5Sun, Sep 6, 2026, 21:00:00 UTCin 4d 14h

Try it in your timezone

0 21 * * *
Get this as JSON (developer API)
curl "https://cron.wrapper-agency.com/api/v1/cron?expr=0%2021%20*%20*%20*&tz=UTC"

Free cron API — no key during beta. Parsing is standard 5-field (or 6-field with seconds) cron, computed with cron-parser.

How to read this expression

FieldValueMeaning
Minute0exactly 0
Hour21exactly 21
Day of month*every value
Month*every value
Day of week*every value

Related schedules

0 0 1 */3 *
Quarterly (1st, every 3 months)
0 8 1-7 * 1
Day 1–7 and on Monday at 8 AM

FAQ

Is "0 21 * * *" a valid cron expression?
Yes — it parses as a standard 5-field cron expression: At 09:00 PM.
How do I use it?
Paste it into your crontab, CI scheduler, or job runner. Need a different schedule? Edit the fields in the builder above or browse all common cron expressions.

Looking for a phrase instead? See every minute, every 5 minutes, every 10 minutes, every 15 minutes.