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Cron expression for every 30 minutes

The cron expression for every 30 minutes is */30 * * * *.

In plain English: every 30 minutes.

Field by field

FieldValueMeans
minute*/300, 30
hour*every hour
day*every day of the month
month*every month
weekday*every day of the week, weekends included

Times it fires

Server local time, on every day the schedule matches.

00:00 · 00:30 · 01:00 · 01:30 · 02:00 · 02:30 · 03:00 · 03:30 · 04:00 · 04:30 · 05:00 · 05:30 · 06:00 · 06:30 · 07:00 · 07:30 · 08:00 · 08:30 · 09:00 · 09:30 · 10:00 · 10:30 · 11:00 · 11:30 · 12:00 · 12:30 · 13:00 · 13:30 · 14:00 · 14:30 · 15:00 · 15:30 · 16:00 · 16:30 · 17:00 · 17:30 · 18:00 · 18:30 · 19:00 · 19:30 · 20:00 · 20:30 · 21:00 · 21:30 · 22:00 · 22:30 · 23:00 · 23:30

Equivalent expressions

Check your own expression

Paste any cron line and see what it means, the next ten times it fires, and the same breakdown in your timezone.

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