# DayOfMonthProperty

Day of the month on which a monthly refresh runs.

Exactly one variant is set: an explicit day number, or the last calendar day of the month.

- Source: Generated code
- Type last changed: v2.272.0 · 30 Sep 2026

## Example

```ts
// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
import { aws_bedrock as bedrock } from 'aws-cdk-lib';

declare const lastDayOfMonth: any;
const dayOfMonthProperty: bedrock.CfnDataSource.DayOfMonthProperty = {
  dayNumber: 123,
  lastDayOfMonth: lastDayOfMonth,
};
```

## Properties

- `dayNumber`: number — Specific day of the month, 1 through 28 (capped at 28 to avoid month-length ambiguity).

- `lastDayOfMonth`: any — Run on the last calendar day of each month.