Cron Expression: 0 0 1 * *
At 00:00 on the 1st of every month.
Field Breakdown
| Field | Value |
|---|---|
| Minute | 0 |
| Hour | 0 |
| Day of Month | 1 |
| Month | * |
| Day of Week | * |
Common Use Case
Monthly billing, monthly reports, quota resets.
Sample Fire Times (UTC)
| When | Unix Timestamp |
|---|---|
| 2026-04-01 00:00 | 1775001600 |
| 2026-05-01 00:00 | 1777593600 |
| 2026-06-01 00:00 | 1780272000 |
| 2026-07-01 00:00 | 1782864000 |
| 2026-08-01 00:00 | 1785542400 |
Sample times computed at build; your scheduler will fire on its own clock.
Equivalents in Popular Schedulers
crontab (Linux/macOS)
0 0 1 * * /path/to/your/script.sh
GitHub Actions (.github/workflows/*.yml)
on:
schedule:
- cron: '0 0 1 * *'
AWS EventBridge (cron format)
cron(0 0 1 * *) # Note: AWS uses 6 fields with year
Kubernetes CronJob
spec: schedule: "0 0 1 * *"