Strefa czasowa +8 and other 80,800 icons from Icons8 icon pack follow the visual guidelines of the operating systems: Windows, iOS, Android KitKat, and Material. PNG format is free up to 100x100 px. Icons are availble for download in PNG and vector (SVG, PDF, EPS, and more).
A horizontal rectangle with zig-zag lines at the top and bottom and four columns of parsed dots on the inside. There is a circle overlapping the bottom right quarter of the rectangle with a plus symbol followed by the number eight inside of it.