> For the complete documentation index, see [llms.txt](https://docs.cohesiveapp.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.cohesiveapp.com/reference/workflow-documentation/templates/date-expressions.md).

# Date Expressions

Cohesive supports simple calculations involving dates. You can adjust dates (presented in any common ISO 8601 format, like`YYYY-MM-DD hh:mm:ss a` or`YYYY/MM/DD`) by days, weeks, months, or years.

Example 1: Description to add 5 days to the `orderDate` field

```
ADD_DAYS(orderDate, 5)
```

Example 2: Description to add 5 weeks to the `orderDate` field

```
ADD_WEEKS(orderDate, 5)
```

Example 3: Description to subtract a month from the `orderDate` field

```
ADD_MONTHS(orderDate, -1)
```

Example 4: Description to subtract a year from the `orderDate` field

```
ADD_YEARS(orderDate, -1)
```