Ключевые слова: accuracy, agenda, appointment, background, black, blank, business, busy, calendar, clock, closeup, concept, contact, countdown, date, day, diary, document, empty, event, history, hour, management, measurement, mechanism, meeting, memo, minute, month, note, number, object, office, organizer, page, paper, planning, reminder, schedule, second, speed, symbol, time, watch, week, work, year,