## Description Adjust the timer duration. ## Fields | Key | Type | Description | |---|---|---| | `devices` | \[[Device](https://developers.home.google.com/automations/schema/basics.md.txt#entity)\] | Devices that have timer function. Required | | `duration` | [Duration](https://developers.home.google.com/automations/schema/basics.md.txt#duration) | The specified duration, which may be positive or negative, that is added to the duration currently on the timer. To extend the time on the timer, provide a positive duration. To reduce the time on the timer, provide a negative duration. Required | ## Examples ```yaml actions: - type: device.command.TimerAdjust devices: My Device - Room Name duration: 10min ```