Monthly on First Day Cron Expression
Execute a job on the 1st of every month at midnight
CRON EXPRESSION
0 0 1 * *Understanding the Expression
0Minute
0Hour
1Day
*Month
*Weekday
Format: minute hour day month weekday
Special characters: * (any value), */n (every n), n-m (range), , (list)
Want to test this expression?
See when it will run in your timezone and validate the syntax
Use with ClawTick
Schedule this pattern with ClawTick's CLI or dashboard:
clawtick job create \ --cron "0 0 1 * *" \ --message "Your task message here" \ --name "Monthly on First Day Job"
Common Use Cases
Monthly billing runs
Monthly report generation
Subscription renewals
Monthly maintenance tasks
Variations
0 9 1 * *First day at 9 AM instead
0 0 15 * *15th of month at midnight
Production Tips
Timezone Considerations
Cron expressions run in UTC by default. ClawTick lets you specify IANA timezones per job (e.g., America/New_York, Europe/London).
Monitoring & Alerts
Always monitor scheduled jobs for failures. ClawTick provides built-in execution history and failure alerts so you know immediately when something breaks.
Idempotency
Design jobs to be idempotent (safe to run multiple times). This prevents issues if a trigger fires twice due to network retries or scheduler edge cases.
Related Cron Expressions
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