Meet the Hozelock Cloud Controller Kit: a connected gardening solution that lets you water your garden from anywhere in the world using an iOS or Android device. It lets you pause watering for up to 14 days. You get a hub and remote taps with a range of 50 meters. Each hub can control 4 remote taps.
The app lets you create your own watering schedule and set start time, frequency, and duration. More information is available here.