Cron Reference

Every Year

Yes — @yearly (and @annually ) are aliases for 0 0 1 1 * in most cron implementations.

Runs once a year on January 1st at midnight.

Cron Expression

0 0 1 1 * Test in tool

At 12:00 AM, in January, on the 1st

Expression Breakdown

Minute	Hour	Day	Month	Weekday
0	0	1	1	*
0	0	1	1	any

Times are relative to the server's local clock at page load.

Run crontab -e and add this line:

0 0 1 1 * /path/to/your/script.sh

scheduler.add_job(my_func, 'cron',
    minute='0',
    hour='0',
    day='1',
    month='1',
    day_of_week='*')

on:
  schedule:
    - cron: '0 0 1 1 *'

What does 0 0 1 1 * mean?

Midnight on January 1st — once per year.

Is @yearly the same as 0 0 1 1 *?

Yes — @yearly (and @annually) are aliases for 0 0 1 1 * in most cron implementations.