0 0 1 1 *

This cron expression runs at 12:00 am, on day 1 of the month, only in january.

Expression

Next runs (your local time)

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What 0 0 1 1 * means

Once a year at midnight on 1 January, for annual archives and yearly resets.

In plain English, cron reads this as: at 12:00 am, on day 1 of the month, only in january.

Field-by-field breakdown

FieldValueMeaning
Minute 0 at 0
Hour 0 at 0
Day of month 1 at 1
Month 1 at 1
Day of week * every value

Editing this schedule

To adjust this expression or explain a different one, open the full cron expression parser — it explains any crontab line, lists upcoming runs and breaks down each field as you type. New to the syntax? The practical guide to cron expressions walks through every field with worked examples.