interval
Run Every 30 Minutes
Execute a task every 30 minutes (twice per hour).
Cron Expression
*/30 * * * *
Expression Breakdown
*/30
Minute
Every 30 minutes
*
Hour
Every hour (0-23)
*
Day of Month
Every day (1-31)
*
Month
Every month (1-12)
*
Day of Week
Every day of the week
Next 10 scheduled runs
| # | Date & Time | Relative |
|---|---|---|
| 1 | Fri, Dec 26, 11:30 PM | in 5 minutes |
| 2 | Sat, Dec 27, 12:00 AM | in 35 minutes |
| 3 | Sat, Dec 27, 12:30 AM | in 1 hour |
| 4 | Sat, Dec 27, 1:00 AM | in 1 hour |
| 5 | Sat, Dec 27, 1:30 AM | in 2 hours |
| 6 | Sat, Dec 27, 2:00 AM | in 2 hours |
| 7 | Sat, Dec 27, 2:30 AM | in 3 hours |
| 8 | Sat, Dec 27, 3:00 AM | in 3 hours |
| 9 | Sat, Dec 27, 3:30 AM | in 4 hours |
| 10 | Sat, Dec 27, 4:00 AM | in 4 hours |
Common Use Cases
- Report generation
- Data backup
- Newsletter queue
Integration Example
crontab
# Add to crontab -e
*/30 * * * * /path/to/script.sh && curl -fsS https://haspulse.dev/ping/YOUR_CHECK_ID
*/30 * * * * /path/to/script.sh && curl -fsS https://haspulse.dev/ping/YOUR_CHECK_ID
Related Patterns
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