~/cron-builder

Cron: annually (Jan 1 at midnight)

The cron expression `0 0 1 1 *` fires once a year at 00:00 on January 1. Equivalent to `@yearly` or `@annually` in most runners.

# expression

0 0 1 1 *

Means: At 00:00 on day 1 of month 1 — once a year on January 1.

→ Open in cron builder (pre-filled)

# common use cases

• Annual report generation, tax-year roll-forward.
• Yearly archive / cold-storage migration.
• Resetting counters that operate on a calendar-year basis.

# next fires (sample)

• 2027-01-01 00:00
• 2028-01-01 00:00
• 2029-01-01 00:00
• 2030-01-01 00:00
• 2031-01-01 00:00

# pitfalls

• Annual jobs run rarely enough that bugs surface only once a year. Add liberal logging and an alert if the job fails or skips.
• New Year's Eve traffic can spike — schedule for January 2 if your service is consumer-facing and you do not want a midnight surprise.

# other patterns

• Cron: every 5 minutes — */5 * * * *
• Cron: every 15 minutes — */15 * * * *
• Cron: every hour — 0 * * * *
• Cron: daily at 3 AM — 0 3 * * *
• Cron: weekdays at 9 AM — 0 9 * * 1-5
• Cron: first of every month at midnight — 0 0 1 * *

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