Cron Every Day at 6 AM and 6 PM

The cron expression 0 6,18 * * * fires twice daily at 6:00 AM and 6:00 PM. The list 6,18 in the hour field targets both times, creating even 12-hour spacing.

This morning-and-evening schedule is useful for pre-business and post-business processing: 6 AM prepares data for the workday, 6 PM captures the day's results. Common uses include bi-daily data syncs, morning and evening reports, cache warming before peak hours, and end-of-day archival.

For a different pair of times, adjust the list: 0 8,20 * * * for 8 AM and 8 PM, 0 9,17 * * * for 9 AM and 5 PM. For weekdays only, add the day filter: 0 6,18 * * 1-5.