> ## Documentation Index
> Fetch the complete documentation index at: https://docs.metrics-man.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Adddays

# \$addDays

The `$addDays` operator adds a specified number of days to a date object.

## Input

* An array containing a date object and an integer number of days to add

## Output

* A new date object with the specified number of days added

## Examples

### Add Days to Date

```json theme={null}
{
  "$addDays": [
    {
      "$toDate": ["2023-01-15T10:30:00Z"]
    },
    10
  ]
}
```

Result: `Date object representing January 25, 2023 at 10:30:00 UTC`

### Add Days to Field Value

```json theme={null}
{
  "$addDays": [
    {
      "$input": "start_date"
    },
    {
      "$input": "days_to_add"
    }
  ]
}
```

Result: A new date with days\_to\_add added to the start\_date field