Minimal black line icons for gears, clock, hourglass, and digital watch

A clean set of four black outline icons arranged on a white background in a balanced two-by-two grid. The symbols include two interlocking gears, a vertical timer or clock icon, an hourglass, and a digital wristwatch displaying 12:00. Strong contrast and simple linework give the graphic a crisp, technical feel suited to UI design, productivity themes, scheduling concepts, or time management visuals. The generous white space keeps the composition uncluttered and easy to crop for presentations, apps, or editorial layouts. Each icon is isolated and evenly spaced, making the image useful as a general-purpose symbol set for business, planning, and workflow content.