Run a Cron Job Yearly on January 1st

Pinning both day-of-month to 1 and month to 1 creates a yearly schedule. The job fires once per year at midnight on New Year’s Day. Annual crons are used for license renewals, yearly data archival, and resetting annual counters. While it runs only once a year, it is critical that these jobs are monitored because a failure would not be retried for another 12 months.

The minute and hour are 0 (midnight), day-of-month is 1, and month is 1 (January). This combination matches only one moment in the entire year: January 1st at 00:00. The day-of-week remains a wildcard since the specific date already determines the day. This is the lowest-frequency standard cron schedule possible.