Ключевые слова: 21, agenda, anniversary, appointment, august, business, calendar, calender, celebration, concept, daily, date, day, deadline, design, diary, element, event, first, graphic, icon, illustration, line, management, meeting, minimal, month, note, number, number 21, numbers, office, organizer, page, paper, plan, planner, planning, reminder, schedule, simple, summer, task, template, time, today, todo, week,