This Strefa czasowa +3 icon is made in Material Design style developed by Google. This style is based on extremely simplified shapes, thin two-pixel lines, and is optimized for 24x24 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 4,300 icons, all in the same style and quality.
A timezone +3 icon is represented with a foldout map icon. The map will have straight sides, but on the top and bottom will be a zig zag pattern. An important aspect of the timezone +3 icon is that there will be a +3 in a circle next to the map.