# Cron expression explainer

Read any cron expression in plain words and see when it will run next.

## How it works

The five fields are minute, hour, day of month, month and day of week. Each can be a value, a list, a range or a step like */15.

## Questions

### Which time zone does cron use?

The server’s, unless your scheduler sets one. The next runs here use your browser’s time zone.

### What if both day fields are set?

Classic cron runs when either matches, not both.

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