# ADD\_WEEKDAYS

### Description

`ADD_WEEKDAYS` takes a date, from either an information or in [ISO8601 format](https://docs.atfinity.io/rule-language/operators/date-operators), and a number of weekdays to add, and returns a date with the given number of weekdays added. For this calculation, weekdays are all days of the week except for Saturday and Sunday.

### Example: Date

```
ADD_WEEKDAYS('2000-01-01', 10)
```

This returns `2000-01-17T00:00:00`. This actually added 17 days since weekends were ignored when adding.

### Example: Date with time

If you specify not just a date, but a date and time in ISO8601 format, the function includes the time in the calculation.

```
ADD_WEEKDAYS('2000-01-01T09:35:23', 10)
```

This returns also the 17th January 2000, but at 9:35:23, so `2000-01-17T09:35:23`.