DevOps

Cron Job Every 30 Minutes (*/30 * * * *)

Generate and test crontab expressions for running half-hourly automation tasks (:00 and :30 of every hour).

Presets:
Generated Expression
*/30 * * * *
Human Translation

Runs every 30 minutes of every hour, every day of month, every day of week, in every month.

Cron Job Every 30 Minutes (*/30 * * * *): Crontab Guide & Expression

Running Tasks Half-Hourly

Half-hourly jobs are typically used for syncing inventory, refreshing authorization tokens, or processing outbound email queues.

0,30 * * * * /usr/bin/node /app/sync.js

Popular Cron Schedules & Expressions

Cron Job Every 5 Minutes (*/5 * * * *)Cron Job Every 10 Minutes (*/10 * * * *)Cron Job Every 15 Minutes (*/15 * * * *)Cron Job Every Hour (0 * * * *)Cron Job Everyday at Midnight (0 0 * * *)Cron Job Everyday at Noon (0 12 * * *)Cron Job Weekdays at 9:00 AM (0 9 * * 1-5)Cron Job on 1st Day of Every Month (0 0 1 * *)Custom Cron Builder →

How to Use

  1. 1

    Schedule Pre-Configured

    This page is pre-loaded with the '*/30 * * * *' expression. Check the human explanation and upcoming execution forecast below.

  2. 2

    Customize or Tweak

    Switch to the Cron Generator tab to tweak minute intervals, hours, or specific weekdays.

  3. 3

    Copy Crontab Syntax

    Click the Copy button to instantly copy the 5-field cron string for your crontab or pipeline.

Frequently Asked Questions

What is the cron expression for every 30 minutes?+

The standard expression is '*/30 * * * *', or alternatively '0,30 * * * *'. Both run at the top and bottom of every hour.