A water timer is a tool used to automate garden watering systems, ensuring that plants receive consistent hydration even when homeowners are away. It connects to a garden hose or sprinkler system, allowing users to set schedules for watering duration and frequency. Available in manual and digital models, water timers help conserve water by avoiding overwatering and ensuring plants get the right amount of moisture at the right times. This device is essential for busy gardeners, as it simplifies garden maintenance, promotes efficient water use, and supports healthy plant growth.