0 0 * * 1 — what this cron expression means

The cron expression 0 0 * * 1 runs at midnight (00:00) every Monday. Here is the field-by-field breakdown and what it means in plain English.

Cron expression (minute hour day-of-month month day-of-week)

What 0 0 * * 1 means

It runs at midnight (00:00) every Monday.

minute=0, hour=0, day-of-month=*, month=*, day-of-week=1.

Day-of-week 1 is Monday (0 and 7 are both Sunday). It runs once a week, Monday at 00:00.

The next run is the next time the clock matches: at midnight (00:00) every Monday.

It runs weekly, at midnight at the start of every Monday.

1 is Monday. Sunday is 0 (or 7). Days count up Mon=1 … Sat=6.