Every 30 Minutes Cron Expression
Runs on the hour and on the half-hour.
Expression
*/30 * * * *Try it in the tester →Field Breakdown
*/30
minute
*
hour
*
day-of-month
*
month
*
day-of-week
minuteevery 30 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 `*/30` fires at minutes 0 and 30 of every hour — twice per hour, 48 times per day.
Example Run Times
- 12:00:00
- 12:30:00
- 13:00:00
- 13:30:00
- 14:00:00
Frequently Asked Questions
Is `0,30 * * * *` equivalent?
Yes, identical. Use whichever form is clearer for your team.