Cron Expression for Every 7 Hours
0 */7 * * *→Runs every 7 hours at minute 00
Minute
0–59
*/7
Hour
0–23
*
Day
1–31
*
Month
1–12
*
Weekday
0–7
Quick Examples
How It Works
The expression
0 */7 * * * uses a step in the hour field to space jobs roughly seven hours apart at minute 0.Common Use Cases
- 1Unusual cadences to avoid peak overlap
- 2Distributed batch spacing
Linux Crontab Example
0 */7 * * * /app/seven-hour.shAdd this line to your crontab with crontab -e
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More Every X Hours
Runs once every hour at minute 0
0 * * * *
Runs every 2 hours at minute 0
0 */2 * * *
Runs every 3 hours at minute 0
0 */3 * * *
Runs 4 times a day: 00:00, 06:00, 12:00, 18:00
0 */6 * * *
Runs twice a day: midnight and noon
0 */12 * * *
Runs every 4 hours at minute 0
0 */4 * * *
Runs every 8 hours at minute 0
0 */8 * * *
Runs at 15 minutes past every hour
15 * * * *
Runs at 30 minutes past every hour
30 * * * *
Runs at 45 minutes past every hour
45 * * * *
Runs every 5 hours at minute 0
0 */5 * * *