homeassistant-config/.storage/timer

{
    "version": 1,
    "key": "timer",
    "data": {
        "items": [
            {
                "duration": "0:10:00",
                "name": "F\u00f6n Timer",
                "icon": "mdi:hair-dryer",
                "id": "fon_timer"
            }
        ]
    }
}