Every Minute Cron Expression
Runs once every minute, every hour of every day.
Expression
* * * * *Try it in the tester →Field Breakdown
*
minute
*
hour
*
day-of-month
*
month
*
day-of-week
minuteevery minute (0–59)
hourevery hour (0–23)
day-of-monthevery day (1–31)
monthevery month (1–12)
day-of-weekevery weekday (0=Sun – 6=Sat)
How It Works
Five wildcards — the job fires at the top of every minute, 1,440 times per day.
Example Run Times
- 12:00:00
- 12:01:00
- 12:02:00
- 12:03:00
- 12:04:00
Frequently Asked Questions
Is `* * * * *` the same as `@every 1m`?
Functionally yes for Unix cron. `@every 1m` is a Go cron extension and is not portable to crontab or POSIX cron.
Will this run on the second boundary?
Standard Unix cron has minute-level resolution. The job is queued at second 0 of each minute. For sub-minute scheduling use Quartz with a seconds field.