Ключевые слова: abbreviation, altitude, area, backdrop, background, banner, business, celestial, clock, concept, coordinate, country, daylight, design, global, gmt, graphic, greenwich, hour, letter, london, maritime, mean, meeting, navigation, observatory, official, period, reference, royal, saving, science, sign, signal, solar, standard, summer, sun, symbol, technical, time, travel, universal, utc, wood, word, zone,