# VoucherifySdk::ValidityTimeframe

## Properties

| Name | Type | Description | Notes |
| ---- | ---- | ----------- | ----- |
| **duration** | **String** | Defines the amount of time an earning rule will be active in ISO 8601 format. For example, an earning rule with a `duration` of `PT1H` will be valid for a duration of one hour. | [optional] |
| **interval** | **String** | Defines the intervening time between two time points in ISO 8601 format, expressed as a duration. For example, an earning rule with an `interval` of `P2D` will be valid every other day. | [optional] |