0 /3 * *

Every 3 hours.

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Field breakdown

0	minute	at minute 0
*/3	hour	every 3 hours
*	day of month	every day of the month
*	month	every month
*	day of week	every day of the week

Next 5 runs (UTC)

Friday, June 26, 2026 at 09:00 UTCin 57 yr
Friday, June 26, 2026 at 12:00 UTCin 57 yr
Friday, June 26, 2026 at 15:00 UTCin 57 yr
Friday, June 26, 2026 at 18:00 UTCin 57 yr
Friday, June 26, 2026 at 21:00 UTCin 57 yr

Times shown in UTC. Show my local timezone →

Will you know if this job doesn't run?

This page tells you when 0 */3 * * * should fire. cron.watch tells you if it actually did — and pages you when it silently fails.

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Related schedules

0 * * * *At the top of every hour.0 */2 * * *Every 2 hours.0 */4 * * *Every 4 hours.0 */6 * * *Every 6 hours.0 */12 * * *Every 12 hours.15 * * * *At 15 minutes past every hour.