Cron: every 30 minutes

Every 30 minutes: */30 * * * *

Runs on the hour and at half past. Equivalent to 0,30 * * * *.

Build a different schedule with the crontab generator.

Other common values

• Every minute — * * * * *
• Every 5 minutes — */5 * * * *
• Every 15 minutes — */15 * * * *
• Every hour — 0 * * * *
• Every 6 hours — 0 */6 * * *
• Every day at midnight — 0 0 * * *
• Weekdays at 9 AM — 0 9 * * 1-5
• Every Sunday at midnight — 0 0 * * 0
• First day of every month — 0 0 1 * *