Every 20 Minutes Cron Expression
Runs three times per hour: minutes 0, 20, 40.
Expression
*/20 * * * *Try it in the tester →Field Breakdown
*/20
minute
*
hour
*
day-of-month
*
month
*
day-of-week
minuteevery 20 minutes, starting at 0
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
Step value `*/20` fires at minutes 0, 20, and 40 of every hour — three runs per hour.
Example Run Times
- 12:00:00
- 12:20:00
- 12:40:00
- 13:00:00
- 13:20:00
Frequently Asked Questions
Is `0,20,40 * * * *` equivalent?
Yes — `*/20` is shorthand for the explicit list `0,20,40` in the minute field.