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

# Day

Returns the day of the month of a date value as a number.

**Category:** `date`

**Syntax:**

```
Day([date_column], |timezone|)
```

**Returns:** `IntColumn`

**Context Filtering:** ✓ Yes

## Parameters

| Name          | Type               | Required | Description                                              |
| ------------- | ------------------ | -------- | -------------------------------------------------------- |
| `date_column` | `column\|datetime` | ✓ Yes    | The date from which to extract the day component.        |
| `timezone`    | `text`             | ✗ No     | Optional IANA time zone name (e.g., "Europe/Amsterdam"). |

**Allowed Column Types:** DATETIME, DATE

## Validation

* Minimum parameters: 1
* Maximum parameters: 2

## Examples

```
Day([Date])
```

Returns the day of the month of each date value in the \[Date] column as a number.