Cron Every Odd Hour (1, 3, 5 … 23)
Cron expression to run a job at every odd hour: 0 1-23/2 * * *. Fires at 01:00, 03:00, 05:00, 07:00, 09:00, 11:00, 13:00, 15:00, 17:00, 19:00, 21:00, and 23:00.
0
Minute
1-23/2
Hour
*
Day (M)
*
Month
*
Weekday
“On the hour, every 2 hours, between 01:00 AM and 11:00 PM”
Next execution dates
- Thu, Jun 11, 2026, 01:00:00 PMin 1 hour
- Thu, Jun 11, 2026, 03:00:00 PMin 3 hours
- Thu, Jun 11, 2026, 05:00:00 PMin 5 hours
- Thu, Jun 11, 2026, 07:00:00 PMin 7 hours
- Thu, Jun 11, 2026, 09:00:00 PMin 9 hours
Visual builder
Pick how often the job should run. The expression updates automatically.
At:
How cron syntax works
A standard cron expression has five fields, separated by spaces.
| Minute | Hour | Day of month | Month | Day of week |
|---|---|---|---|---|
| 0 - 59 | 0 - 23 | 1 - 31 | 1 - 12 | 0 - 6 (Sun-Sat) |
*Any value* * * * * — every minute
,Value list separator0 9,17 * * * — at 9 AM and 5 PM
-Range of values0 9-17 * * * — every hour 9 AM–5 PM
/Step values*/15 * * * * — every 15 minutes
?No specific value (Quartz)0 0 12 ? * MON
LLast (day of month/week)0 0 L * ? — last day of month
Common cron expressions
Click any example to load and translate it.
When to use this schedule
Running at odd hours complements a job already running at even hours (`0 */2 * * *`). Useful for splitting a workload between two jobs without overlap — one handles even hours, the other handles odd hours.