Ключевые слова: action, antique, artistic, background, business, checking, clock, concept, countdown, crystal, deadline, deadlines, eternity, flowing, glass, hour, hourglass, instrument, management, measurement, modern, object, old, passage of time, passing, past, patience, pink surface, pressure, purple sand, retro, running, sand, sandglass, space, speed, symbol, time, timer, transparent, urgency, watch,