Ключевые слова: 1 hour, background, banner, care, climate, clock, concept, conservation, earth, earth day, earth hour, eco, ecology, electrical, electricity, energy, environment, environmental, event, generated, global, global network, globe, hour, international, lamp, light, light bulb, minute, montage, nature, no people, off, planet, planet earth, power, power saving, protect, protection, reminder, save, saving, solar, switch off, symbol, technology, time, time concept, timer, world,