Selective focus of hourglass or sand clock isolated on a blue background with a copy space.timer, object, minute, antique, isolated, flow, white, flowing, vintage, watch, passing, measurement, measure, running, retro, deadline, hour-glass, instrument, past, old, trickle, history, trickling, pressure, stopwatch, age, background, sandclock, counting, concept, process, empty, equipment, classic, grain, fall, black, macro, urgent