Ключевые слова: action, ancient, antique, background, black, business, clock, closeup, color, concept, concepts, contemporary, countdown, crystal, dark, deadline, endurance, equipment, eternity, flowing, glass, hour, hourglass, instrument, measurement, measuring, minute, object, old, oldfashioned, passing, past, patience, pressure, reflection, retro, running, sand, sandglass, space, speed, time, timer, transparent, urgency, watch, yellow,