Cron Expression: 0 0 1 * *

At 00:00 on the 1st of every month.

Field Breakdown

FieldValue
Minute0
Hour0
Day of Month1
Month*
Day of Week*

Common Use Case

Monthly billing, monthly reports, quota resets.

Sample Fire Times (UTC)

WhenUnix Timestamp
2026-04-01 00:001775001600
2026-05-01 00:001777593600
2026-06-01 00:001780272000
2026-07-01 00:001782864000
2026-08-01 00:001785542400

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 * *"

Other Common Cron Expressions

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